69399803957 has 4 divisors (see below), whose sum is σ = 75708877056. Its totient is φ = 63090730860.

The previous prime is 69399803933. The next prime is 69399803983. The reversal of 69399803957 is 75930899396.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 69399803957 - 2⁸ = 69399803701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69399802957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3154536533 + ... + 3154536554.

It is an arithmetic number, because the mean of its divisors is an integer number (18927219264).

Almost surely, 2^69399803957 is an apocalyptic number.

It is an amenable number.

69399803957 is a deficient number, since it is larger than the sum of its proper divisors (6309073099).

69399803957 is a wasteful number, since it uses less digits than its factorization.

69399803957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6309073098.

The product of its (nonzero) digits is 99202320, while the sum is 68.

The spelling of 69399803957 in words is "sixty-nine billion, three hundred ninety-nine million, eight hundred three thousand, nine hundred fifty-seven".