18770685696 has 432 divisors, whose sum is σ = 65048256000. Its totient is φ = 5092319232.

The previous prime is 18770685671. The next prime is 18770685737. The reversal of 18770685696 is 69658607781.

18770685696 is a `hidden beast` number, since 1 + 8 + 7 + 7 + 0 + 68 + 569 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31336405 + ... + 31337003.

Almost surely, 2^18770685696 is an apocalyptic number.

18770685696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18770685696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32524128000).

18770685696 is an abundant number, since it is smaller than the sum of its proper divisors (46277570304).

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

18770685696 is a wasteful number, since it uses less digits than its factorization.

18770685696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 63.

The spelling of 18770685696 in words is "eighteen billion, seven hundred seventy million, six hundred eighty-five thousand, six hundred ninety-six".