97267815919 has 2 divisors, whose sum is σ = 97267815920. Its totient is φ = 97267815918.

The previous prime is 97267815829. The next prime is 97267815923. The reversal of 97267815919 is 91951876279.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97267815919 is a prime.

It is a super-2 number, since 2×97267815919² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97267815979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48633907959 + 48633907960.

It is an arithmetic number, because the mean of its divisors is an integer number (48633907960).

Almost surely, 2^97267815919 is an apocalyptic number.

97267815919 is a deficient number, since it is larger than the sum of its proper divisors (1).

97267815919 is an equidigital number, since it uses as much as digits as its factorization.

97267815919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17146080, while the sum is 64.

The spelling of 97267815919 in words is "ninety-seven billion, two hundred sixty-seven million, eight hundred fifteen thousand, nine hundred nineteen".