839157065397 has 16 divisors (see below), whose sum is σ = 1420795031680. Its totient is φ = 479518322976.

The previous prime is 839157065393. The next prime is 839157065437. The reversal of 839157065397 is 793560751938.

839157065397 is a `hidden beast` number, since 8 + 3 + 9 + 1 + 570 + 6 + 53 + 9 + 7 = 666.

It is not a de Polignac number, because 839157065397 - 2² = 839157065393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839157065393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2219992048 + ... + 2219992425.

It is an arithmetic number, because the mean of its divisors is an integer number (88799689480).

Almost surely, 2^839157065397 is an apocalyptic number.

It is an amenable number.

839157065397 is a deficient number, since it is larger than the sum of its proper divisors (581637966283).

839157065397 is a wasteful number, since it uses less digits than its factorization.

839157065397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439984489 (or 4439984483 counting only the distinct ones).

The product of its (nonzero) digits is 42865200, while the sum is 63.

The spelling of 839157065397 in words is "eight hundred thirty-nine billion, one hundred fifty-seven million, sixty-five thousand, three hundred ninety-seven".