265140254923997 has 2 divisors, whose sum is σ = 265140254923998. Its totient is φ = 265140254923996.

The previous prime is 265140254923993. The next prime is 265140254924003. The reversal of 265140254923997 is 799329452041562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248494679073796 + 16645575850201 = 15763714^2 + 4079899^2 .

It is a cyclic number.

It is not a de Polignac number, because 265140254923997 - 2² = 265140254923993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265140254923993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132570127461998 + 132570127461999.

It is an arithmetic number, because the mean of its divisors is an integer number (132570127461999).

Almost surely, 2^{265140254923997} is an apocalyptic number.

It is an amenable number.

265140254923997 is a deficient number, since it is larger than the sum of its proper divisors (1).

265140254923997 is an equidigital number, since it uses as much as digits as its factorization.

265140254923997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 293932800, while the sum is 68.

The spelling of 265140254923997 in words is "two hundred sixty-five trillion, one hundred forty billion, two hundred fifty-four million, nine hundred twenty-three thousand, nine hundred ninety-seven".