77081250132 has 60 divisors (see below), whose sum is σ = 201573667680. Its totient is φ = 25685072784.

The previous prime is 77081250061. The next prime is 77081250137. The reversal of 77081250132 is 23105218077.

77081250132 is a `hidden beast` number, since 7 + 70 + 81 + 2 + 501 + 3 + 2 = 666.

It is a super-4 number, since 4×77081250132⁴ (a number of 45 digits) contains 4444 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77081250137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 958963 + ... + 1036229.

It is an arithmetic number, because the mean of its divisors is an integer number (3359561128).

Almost surely, 2^77081250132 is an apocalyptic number.

It is an amenable number.

77081250132 is an abundant number, since it is smaller than the sum of its proper divisors (124492417548).

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

77081250132 is a wasteful number, since it uses less digits than its factorization.

77081250132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80362 (or 80351 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 77081250132 in words is "seventy-seven billion, eighty-one million, two hundred fifty thousand, one hundred thirty-two".