77115413747 has 4 divisors (see below), whose sum is σ = 77981879160. Its totient is φ = 76248948336.

The previous prime is 77115413741. The next prime is 77115413761. The reversal of 77115413747 is 74731451177.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77115413747 - 2⁴ = 77115413731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77115413741) 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 3 ways as a sum of consecutive naturals, for example, 433232573 + ... + 433232750.

It is an arithmetic number, because the mean of its divisors is an integer number (19495469790).

Almost surely, 2^77115413747 is an apocalyptic number.

77115413747 is a deficient number, since it is larger than the sum of its proper divisors (866465413).

77115413747 is an equidigital number, since it uses as much as digits as its factorization.

77115413747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866465412.

The product of its digits is 576240, while the sum is 47.

The spelling of 77115413747 in words is "seventy-seven billion, one hundred fifteen million, four hundred thirteen thousand, seven hundred forty-seven".