76012137720 has 128 divisors (see below), whose sum is σ = 253498824000. Its totient is φ = 20259901440.

The previous prime is 76012137613. The next prime is 76012137763. The reversal of 76012137720 is 2773121067.

76012137720 is a `hidden beast` number, since 7 + 601 + 21 + 3 + 7 + 7 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2317596 + ... + 2350164.

Almost surely, 2^76012137720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76012137720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126749412000).

76012137720 is an abundant number, since it is smaller than the sum of its proper divisors (177486686280).

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

76012137720 is a wasteful number, since it uses less digits than its factorization.

76012137720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34750 (or 34740 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

Adding to 76012137720 its reverse (2773121067), we get a palindrome (78785258787).

The spelling of 76012137720 in words is "seventy-six billion, twelve million, one hundred thirty-seven thousand, seven hundred twenty".