77157451776056 has 32 divisors (see below), whose sum is σ = 148586465467440. Its totient is φ = 37534481860608.

The previous prime is 77157451776007. The next prime is 77157451776061. The reversal of 77157451776056 is 65067715475177.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1606955 + ... + 12525861.

Almost surely, 2^{77157451776056} is an apocalyptic number.

It is an amenable number.

77157451776056 is a deficient number, since it is larger than the sum of its proper divisors (71429013691384).

77157451776056 is a wasteful number, since it uses less digits than its factorization.

77157451776056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10942823 (or 10942819 counting only the distinct ones).

The product of its (nonzero) digits is 302526000, while the sum is 68.

The spelling of 77157451776056 in words is "seventy-seven trillion, one hundred fifty-seven billion, four hundred fifty-one million, seven hundred seventy-six thousand, fifty-six".