85621412658 has 32 divisors (see below), whose sum is σ = 180160565760. Its totient is φ = 27091808640.

The previous prime is 85621412647. The next prime is 85621412671.

85621412658 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4694338 + ... + 4712541.

It is an arithmetic number, because the mean of its divisors is an integer number (5630017680).

Almost surely, 2^85621412658 is an apocalyptic number.

85621412658 is an abundant number, since it is smaller than the sum of its proper divisors (94539153102).

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

85621412658 is a wasteful number, since it uses less digits than its factorization.

85621412658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9406962.

The product of its digits is 921600, while the sum is 48.

The spelling of 85621412658 in words is "eighty-five billion, six hundred twenty-one million, four hundred twelve thousand, six hundred fifty-eight".