1057007427840 has 2592 divisors, whose sum is σ = 5003827526880. Its totient is φ = 203333566464.

The previous prime is 1057007427829. The next prime is 1057007427887. The reversal of 1057007427840 is 487247007501.

1057007427840 is a `hidden beast` number, since 1 + 0 + 570 + 0 + 7 + 4 + 2 + 78 + 4 + 0 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 585252864 + 1056422174976 = 24192^2 + 1027824^2 .

It is a super-2 number, since 2×1057007427840² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 4615752846 + ... + 4615753074.

It is an arithmetic number, because the mean of its divisors is an integer number (1930489015).

Almost surely, 2^{1057007427840} is an apocalyptic number.

1057007427840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1057007427840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2501913763440).

1057007427840 is an abundant number, since it is smaller than the sum of its proper divisors (3946820099040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1057007427840 is a wasteful number, since it uses less digits than its factorization.

1057007427840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 45.

The spelling of 1057007427840 in words is "one trillion, fifty-seven billion, seven million, four hundred twenty-seven thousand, eight hundred forty".