81701104652 has 12 divisors (see below), whose sum is σ = 142983819216. Its totient is φ = 40848584880.

The previous prime is 81701104649. The next prime is 81701104669. The reversal of 81701104652 is 25640110718.

It is a super-2 number, since 2×81701104652² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396368 + ... + 566135.

It is an arithmetic number, because the mean of its divisors is an integer number (11915318268).

Almost surely, 2^81701104652 is an apocalyptic number.

It is an amenable number.

81701104652 is a deficient number, since it is larger than the sum of its proper divisors (61282714564).

81701104652 is a wasteful number, since it uses less digits than its factorization.

81701104652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983728 (or 983726 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The spelling of 81701104652 in words is "eighty-one billion, seven hundred one million, one hundred four thousand, six hundred fifty-two".