87194110072647 has 16 divisors (see below), whose sum is σ = 126424528438752. Its totient is φ = 53231380392960.

The previous prime is 87194110072609. The next prime is 87194110072679. The reversal of 87194110072647 is 74627001149178.

It is a happy number.

It is not a de Polignac number, because 87194110072647 - 2⁷ = 87194110072519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87194110074647) 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, 23103895854 + ... + 23103899627.

It is an arithmetic number, because the mean of its divisors is an integer number (7901533027422).

Almost surely, 2^{87194110072647} is an apocalyptic number.

87194110072647 is a deficient number, since it is larger than the sum of its proper divisors (39230418366105).

87194110072647 is a wasteful number, since it uses less digits than its factorization.

87194110072647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46207795538.

The product of its (nonzero) digits is 4741632, while the sum is 57.

The spelling of 87194110072647 in words is "eighty-seven trillion, one hundred ninety-four billion, one hundred ten million, seventy-two thousand, six hundred forty-seven".