864777332562 has 32 divisors (see below), whose sum is σ = 2031924363840. Its totient is φ = 241895757120.

The previous prime is 864777332521. The next prime is 864777332579. The reversal of 864777332562 is 265233777468.

It is a junction number, because it is equal to n+sod(n) for n = 864777332496 and 864777332505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503948637 + ... + 503950352.

It is an arithmetic number, because the mean of its divisors is an integer number (63497636370).

Almost surely, 2^864777332562 is an apocalyptic number.

864777332562 is an abundant number, since it is smaller than the sum of its proper divisors (1167147031278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864777332562 is a wasteful number, since it uses less digits than its factorization.

864777332562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007899018.

The product of its digits is 71124480, while the sum is 60.

The spelling of 864777332562 in words is "eight hundred sixty-four billion, seven hundred seventy-seven million, three hundred thirty-two thousand, five hundred sixty-two".