76899994890 has 64 divisors (see below), whose sum is σ = 186316536960. Its totient is φ = 20312391680.

The previous prime is 76899994877. The next prime is 76899994891. The reversal of 76899994890 is 9849999867.

It is a super-2 number, since 2×76899994890² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76899994891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1352230 + ... + 1407950.

It is an arithmetic number, because the mean of its divisors is an integer number (2911195890).

Almost surely, 2^76899994890 is an apocalyptic number.

76899994890 is an abundant number, since it is smaller than the sum of its proper divisors (109416542070).

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

76899994890 is a wasteful number, since it uses less digits than its factorization.

76899994890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56167.

The product of its (nonzero) digits is 634894848, while the sum is 78.

The spelling of 76899994890 in words is "seventy-six billion, eight hundred ninety-nine million, nine hundred ninety-four thousand, eight hundred ninety".