97769187966031 has 2 divisors, whose sum is σ = 97769187966032. Its totient is φ = 97769187966030.

The previous prime is 97769187966029. The next prime is 97769187966041. The reversal of 97769187966031 is 13066978196779.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97769187966031 - 2¹ = 97769187966029 is a prime.

It is a super-2 number, since 2×97769187966031² (a number of 29 digits) contains 22 as substring.

Together with 97769187966029, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97769187966001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48884593983015 + 48884593983016.

It is an arithmetic number, because the mean of its divisors is an integer number (48884593983016).

Almost surely, 2^{97769187966031} is an apocalyptic number.

97769187966031 is a deficient number, since it is larger than the sum of its proper divisors (1).

97769187966031 is an equidigital number, since it uses as much as digits as its factorization.

97769187966031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296243648, while the sum is 79.

The spelling of 97769187966031 in words is "ninety-seven trillion, seven hundred sixty-nine billion, one hundred eighty-seven million, nine hundred sixty-six thousand, thirty-one".