53639380791 has 16 divisors (see below), whose sum is σ = 80651808000. Its totient is φ = 35225860824.

The previous prime is 53639380763. The next prime is 53639380853. The reversal of 53639380791 is 19708393635.

53639380791 is a `hidden beast` number, since 536 + 3 + 9 + 38 + 0 + 79 + 1 = 666.

It is not a de Polignac number, because 53639380791 - 2⁵ = 53639380759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53639380721) 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, 14823891 + ... + 14827508.

It is an arithmetic number, because the mean of its divisors is an integer number (5040738000).

Almost surely, 2^53639380791 is an apocalyptic number.

53639380791 is a deficient number, since it is larger than the sum of its proper divisors (27012427209).

53639380791 is a wasteful number, since it uses less digits than its factorization.

53639380791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29651475 (or 29651469 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 54.

The spelling of 53639380791 in words is "fifty-three billion, six hundred thirty-nine million, three hundred eighty thousand, seven hundred ninety-one".