77712795001 has 2 divisors, whose sum is σ = 77712795002. Its totient is φ = 77712795000.

The previous prime is 77712794987. The next prime is 77712795053. The reversal of 77712795001 is 10059721777.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75647001600 + 2065793401 = 275040^2 + 45451^2 .

It is a cyclic number.

It is not a de Polignac number, because 77712795001 - 2⁵ = 77712794969 is a prime.

It is not a weakly prime, because it can be changed into another prime (77712795091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38856397500 + 38856397501.

It is an arithmetic number, because the mean of its divisors is an integer number (38856397501).

Almost surely, 2^77712795001 is an apocalyptic number.

It is an amenable number.

77712795001 is a deficient number, since it is larger than the sum of its proper divisors (1).

77712795001 is an equidigital number, since it uses as much as digits as its factorization.

77712795001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216090, while the sum is 46.

The spelling of 77712795001 in words is "seventy-seven billion, seven hundred twelve million, seven hundred ninety-five thousand, one".