97776712651 has 2 divisors, whose sum is σ = 97776712652. Its totient is φ = 97776712650.

The previous prime is 97776712633. The next prime is 97776712667. The reversal of 97776712651 is 15621767779.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97776712651 - 2⁵ = 97776712619 is a prime.

It is not a weakly prime, because it can be changed into another prime (97776712951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48888356325 + 48888356326.

It is an arithmetic number, because the mean of its divisors is an integer number (48888356326).

Almost surely, 2^97776712651 is an apocalyptic number.

97776712651 is a deficient number, since it is larger than the sum of its proper divisors (1).

97776712651 is an equidigital number, since it uses as much as digits as its factorization.

97776712651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7779240, while the sum is 58.

The spelling of 97776712651 in words is "ninety-seven billion, seven hundred seventy-six million, seven hundred twelve thousand, six hundred fifty-one".