76377962640 has 160 divisors (see below), whose sum is σ = 270782954496. Its totient is φ = 17445772800.

The previous prime is 76377962561. The next prime is 76377962651. The reversal of 76377962640 is 4626977367.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2543715 + ... + 2573565.

Almost surely, 2^76377962640 is an apocalyptic number.

76377962640 is a gapful number since it is divisible by the number (70) 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 76377962640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135391477248).

76377962640 is an abundant number, since it is smaller than the sum of its proper divisors (194404991856).

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

76377962640 is a wasteful number, since it uses less digits than its factorization.

76377962640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31397 (or 31391 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 57.

The spelling of 76377962640 in words is "seventy-six billion, three hundred seventy-seven million, nine hundred sixty-two thousand, six hundred forty".