57436409898480 has 160 divisors (see below), whose sum is σ = 183847412441088. Its totient is φ = 14818194432000.

The previous prime is 57436409898463. The next prime is 57436409898481. The reversal of 57436409898480 is 8489890463475.

It is a super-2 number, since 2×57436409898480² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57436409898481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25843305 + ... + 27977655.

Almost surely, 2^{57436409898480} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57436409898480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91923706220544).

57436409898480 is an abundant number, since it is smaller than the sum of its proper divisors (126411002542608).

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

57436409898480 is a wasteful number, since it uses less digits than its factorization.

57436409898480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138015 (or 2138009 counting only the distinct ones).

The product of its (nonzero) digits is 1672151040, while the sum is 75.

The spelling of 57436409898480 in words is "fifty-seven trillion, four hundred thirty-six billion, four hundred nine million, eight hundred ninety-eight thousand, four hundred eighty".