77127576646340 has 48 divisors (see below), whose sum is σ = 177679374223680. Its totient is φ = 27889707742080.

The previous prime is 77127576646303. The next prime is 77127576646397. The reversal of 77127576646340 is 4364667572177.

It is a super-2 number, since 2×77127576646340² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 979234067 + ... + 979312826.

It is an arithmetic number, because the mean of its divisors is an integer number (3701653629660).

Almost surely, 2^{77127576646340} is an apocalyptic number.

It is an amenable number.

77127576646340 is an abundant number, since it is smaller than the sum of its proper divisors (100551797577340).

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

77127576646340 is a wasteful number, since it uses less digits than its factorization.

77127576646340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958547092 (or 1958547090 counting only the distinct ones).

The product of its (nonzero) digits is 248935680, while the sum is 65.

The spelling of 77127576646340 in words is "seventy-seven trillion, one hundred twenty-seven billion, five hundred seventy-six million, six hundred forty-six thousand, three hundred forty".