190768621896 has 72 divisors (see below), whose sum is σ = 545289192630. Its totient is φ = 60242714496.

The previous prime is 190768621867. The next prime is 190768621913. The reversal of 190768621896 is 698126867091.

190768621896 is a `hidden beast` number, since 190 + 76 + 86 + 218 + 96 = 666.

It can be written as a sum of positive squares in only one way, i.e., 102983228100 + 87785393796 = 320910^2 + 296286^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3643765 + ... + 3695748.

Almost surely, 2^190768621896 is an apocalyptic number.

It is an amenable number.

190768621896 is an abundant number, since it is smaller than the sum of its proper divisors (354520570734).

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

190768621896 is a wasteful number, since it uses less digits than its factorization.

190768621896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7339563 (or 7339537 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 63.

The spelling of 190768621896 in words is "one hundred ninety billion, seven hundred sixty-eight million, six hundred twenty-one thousand, eight hundred ninety-six".