76732178140 has 48 divisors (see below), whose sum is σ = 165152312640. Its totient is φ = 29928926720.

The previous prime is 76732178077. The next prime is 76732178141. The reversal of 76732178140 is 4187123767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76732178141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1649034 + ... + 1694926.

It is an arithmetic number, because the mean of its divisors is an integer number (3440673180).

Almost surely, 2^76732178140 is an apocalyptic number.

It is an amenable number.

76732178140 is an abundant number, since it is smaller than the sum of its proper divisors (88420134500).

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

76732178140 is a wasteful number, since it uses less digits than its factorization.

76732178140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47982 (or 47980 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 76732178140 in words is "seventy-six billion, seven hundred thirty-two million, one hundred seventy-eight thousand, one hundred forty".