6969620736 has 432 divisors, whose sum is σ = 23466264640. Its totient is φ = 1970749440.

The previous prime is 6969620731. The next prime is 6969620759. The reversal of 6969620736 is 6370269696.

It is a happy number.

6969620736 is a `hidden beast` number, since 6 + 9 + 6 + 9 + 620 + 7 + 3 + 6 = 666.

It is a super-2 number, since 2×6969620736² = 97151226407362363392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6969620731) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21056091 + ... + 21056421.

Almost surely, 2^6969620736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6969620736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11733132320).

6969620736 is an abundant number, since it is smaller than the sum of its proper divisors (16496643904).

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

6969620736 is a wasteful number, since it uses less digits than its factorization.

6969620736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 54.

The square root of 6969620736 is about 83484.2544196209. The cubic root of 6969620736 is about 1910.1598630848.

It can be divided in two parts, 69696 and 20736, that multiplied together give a square (1445216256 = 38016²).

The spelling of 6969620736 in words is "six billion, nine hundred sixty-nine million, six hundred twenty thousand, seven hundred thirty-six".