86177722947 has 16 divisors (see below), whose sum is σ = 116310862080. Its totient is φ = 56752452000.

The previous prime is 86177722927. The next prime is 86177722949. The reversal of 86177722947 is 74922777168.

It is not a de Polignac number, because 86177722947 - 2²⁰ = 86176674371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86177722949) 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, 450304 + ... + 612477.

It is an arithmetic number, because the mean of its divisors is an integer number (7269428880).

Almost surely, 2^86177722947 is an apocalyptic number.

86177722947 is a deficient number, since it is larger than the sum of its proper divisors (30133139133).

86177722947 is a wasteful number, since it uses less digits than its factorization.

86177722947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063114.

The product of its digits is 16595712, while the sum is 60.

The spelling of 86177722947 in words is "eighty-six billion, one hundred seventy-seven million, seven hundred twenty-two thousand, nine hundred forty-seven".