77460909124 has 45 divisors (see below), whose sum is σ = 142192721391. Its totient is φ = 36921665880.

The previous prime is 77460909079. The next prime is 77460909131. The reversal of 77460909124 is 42190906477.

The square root of 77460909124 is 278318.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

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 14 ways as a sum of consecutive naturals, for example, 1156132939 + ... + 1156133005.

Almost surely, 2^77460909124 is an apocalyptic number.

77460909124 is the 278318-th square number.

It is an amenable number.

77460909124 is a deficient number, since it is larger than the sum of its proper divisors (64731812267).

77460909124 is an frugal number, since it uses more digits than its factorization.

77460909124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 49.

Multiplying 77460909124 by its sum of digits (49), we get a square (3795584547076 = 1948226²).

The spelling of 77460909124 in words is "seventy-seven billion, four hundred sixty million, nine hundred nine thousand, one hundred twenty-four".