77070660755731 has 2 divisors, whose sum is σ = 77070660755732. Its totient is φ = 77070660755730.

The previous prime is 77070660755719. The next prime is 77070660755741. The reversal of 77070660755731 is 13755706607077.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77070660755731 - 2²⁷ = 77070526538003 is a prime.

It is a super-2 number, since 2×77070660755731² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77070660755731.

It is not a weakly prime, because it can be changed into another prime (77070660755741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38535330377865 + 38535330377866.

It is an arithmetic number, because the mean of its divisors is an integer number (38535330377866).

Almost surely, 2^{77070660755731} is an apocalyptic number.

77070660755731 is a deficient number, since it is larger than the sum of its proper divisors (1).

77070660755731 is an equidigital number, since it uses as much as digits as its factorization.

77070660755731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45378900, while the sum is 61.

The spelling of 77070660755731 in words is "seventy-seven trillion, seventy billion, six hundred sixty million, seven hundred fifty-five thousand, seven hundred thirty-one".