61969602844912 has 20 divisors (see below), whose sum is σ = 137218406299696. Its totient is φ = 26558401219200.

The previous prime is 61969602844901. The next prime is 61969602844913. The reversal of 61969602844912 is 21944820696916.

It is a super-2 number, since 2×61969602844912² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61969602844913) 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, 276650012589 + ... + 276650012812.

Almost surely, 2^{61969602844912} is an apocalyptic number.

It is an amenable number.

61969602844912 is an abundant number, since it is smaller than the sum of its proper divisors (75248803454784).

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

61969602844912 is a wasteful number, since it uses less digits than its factorization.

61969602844912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553300025416 (or 553300025410 counting only the distinct ones).

The product of its (nonzero) digits is 80621568, while the sum is 67.

The spelling of 61969602844912 in words is "sixty-one trillion, nine hundred sixty-nine billion, six hundred two million, eight hundred forty-four thousand, nine hundred twelve".