12961835700 has 72 divisors (see below), whose sum is σ = 40912277280. Its totient is φ = 3142262400.

The previous prime is 12961835693. The next prime is 12961835713. The reversal of 12961835700 is 753816921.

It is a congruent number.

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, 1960615 + ... + 1967214.

Almost surely, 2^12961835700 is an apocalyptic number.

12961835700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12961835700 is an abundant number, since it is smaller than the sum of its proper divisors (27950441580).

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

12961835700 is a wasteful number, since it uses less digits than its factorization.

12961835700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3927857 (or 3927850 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 12961835700 in words is "twelve billion, nine hundred sixty-one million, eight hundred thirty-five thousand, seven hundred".