86628021339 has 16 divisors (see below), whose sum is σ = 116081057664. Its totient is φ = 57463848000.

The previous prime is 86628021313. The next prime is 86628021419. The reversal of 86628021339 is 93312082668.

It is a de Polignac number, because none of the positive numbers 2^k-86628021339 is a prime.

It is a super-2 number, since 2×86628021339² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86628021839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 971544 + ... + 1056954.

It is an arithmetic number, because the mean of its divisors is an integer number (7255066104).

Almost surely, 2^86628021339 is an apocalyptic number.

86628021339 is a deficient number, since it is larger than the sum of its proper divisors (29453036325).

86628021339 is a wasteful number, since it uses less digits than its factorization.

86628021339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87098.

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 86628021339 in words is "eighty-six billion, six hundred twenty-eight million, twenty-one thousand, three hundred thirty-nine".