864146092779 has 6 divisors (see below), whose sum is σ = 1248211022916. Its totient is φ = 576097395180.

The previous prime is 864146092753. The next prime is 864146092781. The reversal of 864146092779 is 977290641468.

864146092779 is a `hidden beast` number, since 8 + 6 + 4 + 14 + 609 + 2 + 7 + 7 + 9 = 666.

It is not a de Polignac number, because 864146092779 - 2¹² = 864146088683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (864146092709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48008116257 + ... + 48008116274.

It is an arithmetic number, because the mean of its divisors is an integer number (208035170486).

Almost surely, 2^864146092779 is an apocalyptic number.

864146092779 is a deficient number, since it is larger than the sum of its proper divisors (384064930137).

864146092779 is a wasteful number, since it uses less digits than its factorization.

864146092779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96016232537 (or 96016232534 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 864146092779 in words is "eight hundred sixty-four billion, one hundred forty-six million, ninety-two thousand, seven hundred seventy-nine".