89857120628 has 24 divisors (see below), whose sum is σ = 172104217824. Its totient is φ = 40711096800.

The previous prime is 89857120621. The next prime is 89857120637. The reversal of 89857120628 is 82602175898.

It is a happy number.

It is a super-2 number, since 2×89857120628² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89857120621) 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, 3312563 + ... + 3339578.

It is an arithmetic number, because the mean of its divisors is an integer number (7171009076).

Almost surely, 2^89857120628 is an apocalyptic number.

It is an amenable number.

89857120628 is a deficient number, since it is larger than the sum of its proper divisors (82247097196).

89857120628 is a wasteful number, since it uses less digits than its factorization.

89857120628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652463 (or 6652461 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 56.

The spelling of 89857120628 in words is "eighty-nine billion, eight hundred fifty-seven million, one hundred twenty thousand, six hundred twenty-eight".