77050715012 has 24 divisors (see below), whose sum is σ = 138720391992. Its totient is φ = 37424384000.

The previous prime is 77050715011. The next prime is 77050715033. The reversal of 77050715012 is 21051705077.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8748983296 + 68301731716 = 93536^2 + 261346^2 .

It is not an unprimeable number, because it can be changed into a prime (77050715011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969989 + ... + 1046412.

It is an arithmetic number, because the mean of its divisors is an integer number (5780016333).

Almost surely, 2^77050715012 is an apocalyptic number.

It is an amenable number.

77050715012 is a deficient number, since it is larger than the sum of its proper divisors (61669676980).

77050715012 is a wasteful number, since it uses less digits than its factorization.

77050715012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016679 (or 2016677 counting only the distinct ones).

The product of its (nonzero) digits is 17150, while the sum is 35.

The spelling of 77050715012 in words is "seventy-seven billion, fifty million, seven hundred fifteen thousand, twelve".