86557054078 has 32 divisors (see below), whose sum is σ = 144993847680. Its totient is φ = 38412934560.

The previous prime is 86557054069. The next prime is 86557054079. The reversal of 86557054078 is 87045075568.

It is a super-2 number, since 2×86557054078² (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 (86557054079) 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, 2383876 + ... + 2419912.

It is an arithmetic number, because the mean of its divisors is an integer number (4531057740).

Almost surely, 2^86557054078 is an apocalyptic number.

86557054078 is a deficient number, since it is larger than the sum of its proper divisors (58436793602).

86557054078 is a wasteful number, since it uses less digits than its factorization.

86557054078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38632.

The product of its (nonzero) digits is 9408000, while the sum is 55.

The spelling of 86557054078 in words is "eighty-six billion, five hundred fifty-seven million, fifty-four thousand, seventy-eight".