97640959151 has 2 divisors, whose sum is σ = 97640959152. Its totient is φ = 97640959150.

The previous prime is 97640959111. The next prime is 97640959187. The reversal of 97640959151 is 15195904679.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97640959151 - 2²² = 97636764847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97640959111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48820479575 + 48820479576.

It is an arithmetic number, because the mean of its divisors is an integer number (48820479576).

Almost surely, 2^97640959151 is an apocalyptic number.

97640959151 is a deficient number, since it is larger than the sum of its proper divisors (1).

97640959151 is an equidigital number, since it uses as much as digits as its factorization.

97640959151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3061800, while the sum is 56.

The spelling of 97640959151 in words is "ninety-seven billion, six hundred forty million, nine hundred fifty-nine thousand, one hundred fifty-one".