69469073640 has 48 divisors (see below), whose sum is σ = 225774490500. Its totient is φ = 18525086208.

The previous prime is 69469073633. The next prime is 69469073657. The reversal of 69469073640 is 4637096496.

It can be written as a sum of positive squares in 2 ways, for example, as 69389042724 + 80030916 = 263418^2 + 8946^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96484465 + ... + 96485184.

Almost surely, 2^69469073640 is an apocalyptic number.

69469073640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69469073640 is an abundant number, since it is smaller than the sum of its proper divisors (156305416860).

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

69469073640 is a wasteful number, since it uses less digits than its factorization.

69469073640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192969666 (or 192969659 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 54.

The spelling of 69469073640 in words is "sixty-nine billion, four hundred sixty-nine million, seventy-three thousand, six hundred forty".