77049239104 has 28 divisors (see below), whose sum is σ = 152944921948. Its totient is φ = 38511936000.

The previous prime is 77049239089. The next prime is 77049239107. The reversal of 77049239104 is 40193294077.

It can be written as a sum of positive squares in 2 ways, for example, as 60787888704 + 16261350400 = 246552^2 + 127520^2 .

It is not an unprimeable number, because it can be changed into a prime (77049239107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 747 + ... + 392554.

It is an arithmetic number, because the mean of its divisors is an integer number (5462318641).

Almost surely, 2^77049239104 is an apocalyptic number.

It is an amenable number.

77049239104 is a deficient number, since it is larger than the sum of its proper divisors (75895682844).

77049239104 is a wasteful number, since it uses less digits than its factorization.

77049239104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396374 (or 396364 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 77049239104 in words is "seventy-seven billion, forty-nine million, two hundred thirty-nine thousand, one hundred four".