77770382472377 has 32 divisors (see below), whose sum is σ = 91289220000000. Its totient is φ = 64877262667776.

The previous prime is 77770382472119. The next prime is 77770382472379. The reversal of 77770382472377 is 77327428307777.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77770382472377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77770382472377.

It is not an unprimeable number, because it can be changed into a prime (77770382472379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55534649 + ... + 56917817.

It is an arithmetic number, because the mean of its divisors is an integer number (2852788125000).

Almost surely, 2^{77770382472377} is an apocalyptic number.

It is an amenable number.

77770382472377 is a deficient number, since it is larger than the sum of its proper divisors (13518837527623).

77770382472377 is a wasteful number, since it uses less digits than its factorization.

77770382472377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384593.

The product of its (nonzero) digits is 948721536, while the sum is 71.

The spelling of 77770382472377 in words is "seventy-seven trillion, seven hundred seventy billion, three hundred eighty-two million, four hundred seventy-two thousand, three hundred seventy-seven".