77412850064 has 40 divisors (see below), whose sum is σ = 163820773728. Its totient is φ = 35145044480.

The previous prime is 77412850063. The next prime is 77412850079. The reversal of 77412850064 is 46005821477.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 77412849997 and 77412850024.

It is not an unprimeable number, because it can be changed into a prime (77412850061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120377 + ... + 411480.

Almost surely, 2^77412850064 is an apocalyptic number.

It is an amenable number.

77412850064 is an abundant number, since it is smaller than the sum of its proper divisors (86407923664).

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

77412850064 is a wasteful number, since it uses less digits than its factorization.

77412850064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532703 (or 532697 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 77412850064 in words is "seventy-seven billion, four hundred twelve million, eight hundred fifty thousand, sixty-four".