77194121060 has 24 divisors (see below), whose sum is σ = 185265890880. Its totient is φ = 26466555744.

The previous prime is 77194121051. The next prime is 77194121077. The reversal of 77194121060 is 6012149177.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275693150 + ... + 275693429.

It is an arithmetic number, because the mean of its divisors is an integer number (7719412120).

Almost surely, 2^77194121060 is an apocalyptic number.

77194121060 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

77194121060 is an abundant number, since it is smaller than the sum of its proper divisors (108071769820).

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

77194121060 is a wasteful number, since it uses less digits than its factorization.

77194121060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551386595 (or 551386593 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 38.

The spelling of 77194121060 in words is "seventy-seven billion, one hundred ninety-four million, one hundred twenty-one thousand, sixty".