2397145621391 has 2 divisors, whose sum is σ = 2397145621392. Its totient is φ = 2397145621390.

The previous prime is 2397145621357. The next prime is 2397145621421. The reversal of 2397145621391 is 1931265417932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2397145621391 - 2²⁶ = 2397078512527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2397145621891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1198572810695 + 1198572810696.

It is an arithmetic number, because the mean of its divisors is an integer number (1198572810696).

Almost surely, 2^{2397145621391} is an apocalyptic number.

2397145621391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2397145621391 is an equidigital number, since it uses as much as digits as its factorization.

2397145621391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 53.

The spelling of 2397145621391 in words is "two trillion, three hundred ninety-seven billion, one hundred forty-five million, six hundred twenty-one thousand, three hundred ninety-one".