77956630753 has 2 divisors, whose sum is σ = 77956630754. Its totient is φ = 77956630752.

The previous prime is 77956630747. The next prime is 77956630757. The reversal of 77956630753 is 35703665977.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69249501409 + 8707129344 = 263153^2 + 93312^2 .

It is a cyclic number.

It is not a de Polignac number, because 77956630753 - 2²⁹ = 77419759841 is a prime.

It is a super-3 number, since 3×77956630753³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (77956630757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38978315376 + 38978315377.

It is an arithmetic number, because the mean of its divisors is an integer number (38978315377).

Almost surely, 2^77956630753 is an apocalyptic number.

It is an amenable number.

77956630753 is a deficient number, since it is larger than the sum of its proper divisors (1).

77956630753 is an equidigital number, since it uses as much as digits as its factorization.

77956630753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25004700, while the sum is 58.

The spelling of 77956630753 in words is "seventy-seven billion, nine hundred fifty-six million, six hundred thirty thousand, seven hundred fifty-three".