69874021836 has 72 divisors (see below), whose sum is σ = 181490749440. Its totient is φ = 22654374624.

The previous prime is 69874021829. The next prime is 69874021859. The reversal of 69874021836 is 63812047896.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 275541 + ... + 464403.

Almost surely, 2^69874021836 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 69874021836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90745374720).

69874021836 is an abundant number, since it is smaller than the sum of its proper divisors (111616727604).

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

69874021836 is a wasteful number, since it uses less digits than its factorization.

69874021836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189155 (or 189150 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 69874021836 in words is "sixty-nine billion, eight hundred seventy-four million, twenty-one thousand, eight hundred thirty-six".