1038660256777 has 16 divisors (see below), whose sum is σ = 1273298318208. Its totient is φ = 833707226880.

The previous prime is 1038660256603. The next prime is 1038660256787. The reversal of 1038660256777 is 7776520668301.

1038660256777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1038660256777 - 2²⁷ = 1038526039049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1038660256787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157895808 + ... + 157902385.

It is an arithmetic number, because the mean of its divisors is an integer number (79581144888).

Almost surely, 2^{1038660256777} is an apocalyptic number.

It is an amenable number.

1038660256777 is a deficient number, since it is larger than the sum of its proper divisors (234638061431).

1038660256777 is a wasteful number, since it uses less digits than its factorization.

1038660256777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315798240.

The product of its (nonzero) digits is 17781120, while the sum is 58.

The spelling of 1038660256777 in words is "one trillion, thirty-eight billion, six hundred sixty million, two hundred fifty-six thousand, seven hundred seventy-seven".