86681501451 has 24 divisors (see below), whose sum is σ = 127147519824. Its totient is φ = 56892844800.

The previous prime is 86681501419. The next prime is 86681501509. The reversal of 86681501451 is 15410518668.

86681501451 is a `hidden beast` number, since 8 + 66 + 81 + 501 + 4 + 5 + 1 = 666.

It is not a de Polignac number, because 86681501451 - 2⁵ = 86681501419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86681501397 and 86681501406.

It is not an unprimeable number, because it can be changed into a prime (86681501051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1046095 + ... + 1125911.

It is an arithmetic number, because the mean of its divisors is an integer number (5297813326).

Almost surely, 2^86681501451 is an apocalyptic number.

86681501451 is a deficient number, since it is larger than the sum of its proper divisors (40466018373).

86681501451 is a wasteful number, since it uses less digits than its factorization.

86681501451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81691 (or 81688 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The spelling of 86681501451 in words is "eighty-six billion, six hundred eighty-one million, five hundred one thousand, four hundred fifty-one".