61317818383700 has 36 divisors (see below), whose sum is σ = 133163700311040. Its totient is φ = 24507950502240.

The previous prime is 61317818383649. The next prime is 61317818383721. The reversal of 61317818383700 is 738381871316.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239582102 + ... + 239837901.

Almost surely, 2^{61317818383700} is an apocalyptic number.

It is an amenable number.

61317818383700 is an abundant number, since it is smaller than the sum of its proper divisors (71845881927340).

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

61317818383700 is a wasteful number, since it uses less digits than its factorization.

61317818383700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479421296 (or 479421289 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 61317818383700 in words is "sixty-one trillion, three hundred seventeen billion, eight hundred eighteen million, three hundred eighty-three thousand, seven hundred".