538749256977 has 12 divisors (see below), whose sum is σ = 779080718260. Its totient is φ = 358756626528.

The previous prime is 538749256919. The next prime is 538749256987. The reversal of 538749256977 is 779652947835.

538749256977 is a `hidden beast` number, since 5 + 3 + 8 + 7 + 492 + 5 + 69 + 77 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 274831771536 + 263917485441 = 524244^2 + 513729^2 .

It is not a de Polignac number, because 538749256977 - 2²⁶ = 538682148113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538749256987) 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 11 ways as a sum of consecutive naturals, for example, 34120402 + ... + 34136187.

Almost surely, 2^538749256977 is an apocalyptic number.

It is an amenable number.

538749256977 is a deficient number, since it is larger than the sum of its proper divisors (240331461283).

538749256977 is a wasteful number, since it uses less digits than its factorization.

538749256977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68257472 (or 68257469 counting only the distinct ones).

The product of its digits is 800150400, while the sum is 72.

The spelling of 538749256977 in words is "five hundred thirty-eight billion, seven hundred forty-nine million, two hundred fifty-six thousand, nine hundred seventy-seven".