61688712000 has 112 divisors (see below), whose sum is σ = 203696206272. Its totient is φ = 16450316800.

The previous prime is 61688711969. The next prime is 61688712013. The reversal of 61688712000 is 21788616.

61688712000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61688712000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1261182 + ... + 1309181.

Almost surely, 2^61688712000 is an apocalyptic number.

61688712000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61688712000 is an abundant number, since it is smaller than the sum of its proper divisors (142007494272).

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

61688712000 is a wasteful number, since it uses less digits than its factorization.

61688712000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570393 (or 2570373 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The spelling of 61688712000 in words is "sixty-one billion, six hundred eighty-eight million, seven hundred twelve thousand".