77913241331 has 8 divisors (see below), whose sum is σ = 83313170784. Its totient is φ = 72604067200.

The previous prime is 77913241327. The next prime is 77913241363. The reversal of 77913241331 is 13314231977.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77913241331 - 2² = 77913241327 is a prime.

It is a super-2 number, since 2×77913241331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77913241391) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22687055 + ... + 22690488.

It is an arithmetic number, because the mean of its divisors is an integer number (10414146348).

Almost surely, 2^77913241331 is an apocalyptic number.

77913241331 is a deficient number, since it is larger than the sum of its proper divisors (5399929453).

77913241331 is a wasteful number, since it uses less digits than its factorization.

77913241331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45377661.

The product of its digits is 95256, while the sum is 41.

The spelling of 77913241331 in words is "seventy-seven billion, nine hundred thirteen million, two hundred forty-one thousand, three hundred thirty-one".