69379815856 has 40 divisors (see below), whose sum is σ = 149433463424. Its totient is φ = 30988500480.

The previous prime is 69379815821. The next prime is 69379815881. The reversal of 69379815856 is 65851897396.

It is a junction number, because it is equal to n+sod(n) for n = 69379815791 and 69379815800.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5373501 + ... + 5386396.

Almost surely, 2^69379815856 is an apocalyptic number.

It is an amenable number.

69379815856 is an abundant number, since it is smaller than the sum of its proper divisors (80053647568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69379815856 is a wasteful number, since it uses less digits than its factorization.

69379815856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10759949 (or 10759943 counting only the distinct ones).

The product of its digits is 97977600, while the sum is 67.

The spelling of 69379815856 in words is "sixty-nine billion, three hundred seventy-nine million, eight hundred fifteen thousand, eight hundred fifty-six".