86425432991415 has 320 divisors, whose sum is σ = 190113320871936. Its totient is φ = 36662826590208.

The previous prime is 86425432991389. The next prime is 86425432991489. The reversal of 86425432991415 is 51419923452468.

It is a happy number.

86425432991415 is a `hidden beast` number, since 8 + 6 + 42 + 543 + 2 + 9 + 9 + 1 + 41 + 5 = 666.

It is not a de Polignac number, because 86425432991415 - 2¹² = 86425432987319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 2012071579 + ... + 2012114531.

Almost surely, 2^{86425432991415} is an apocalyptic number.

86425432991415 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

86425432991415 is an abundant number, since it is smaller than the sum of its proper divisors (103687887880521).

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

86425432991415 is a wasteful number, since it uses less digits than its factorization.

86425432991415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43580 (or 43571 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 63.

The spelling of 86425432991415 in words is "eighty-six trillion, four hundred twenty-five billion, four hundred thirty-two million, nine hundred ninety-one thousand, four hundred fifteen".