57621252671 has 8 divisors (see below), whose sum is σ = 60656836080. Its totient is φ = 54585957888.

The previous prime is 57621252643. The next prime is 57621252673. The reversal of 57621252671 is 17625212675.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-57621252671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57621252673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425825 + ... + 544581.

It is an arithmetic number, because the mean of its divisors is an integer number (7582104510).

Almost surely, 2^57621252671 is an apocalyptic number.

57621252671 is a deficient number, since it is larger than the sum of its proper divisors (3035583409).

57621252671 is a wasteful number, since it uses less digits than its factorization.

57621252671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144313.

The product of its digits is 352800, while the sum is 44.

The spelling of 57621252671 in words is "fifty-seven billion, six hundred twenty-one million, two hundred fifty-two thousand, six hundred seventy-one".