1051375057920 has 1056 divisors, whose sum is σ = 4264255376640. Its totient is φ = 243610583040.

The previous prime is 1051375057903. The next prime is 1051375057937. The reversal of 1051375057920 is 297505731501.

1051375057920 is a `hidden beast` number, since 1 + 0 + 5 + 1 + 3 + 7 + 50 + 579 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (1051375057903) and next prime (1051375057937).

It is a tau number, because it is divible by the number of its divisors (1056).

It is a super-2 number, since 2×1051375057920² (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 95 ways as a sum of consecutive naturals, for example, 804417907 + ... + 804419213.

Almost surely, 2^{1051375057920} is an apocalyptic number.

1051375057920 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 1051375057920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2132127688320).

1051375057920 is an abundant number, since it is smaller than the sum of its proper divisors (3212880318720).

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

1051375057920 is a wasteful number, since it uses less digits than its factorization.

1051375057920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 330750, while the sum is 45.

The spelling of 1051375057920 in words is "one trillion, fifty-one billion, three hundred seventy-five million, fifty-seven thousand, nine hundred twenty".