264871188997 has 2 divisors, whose sum is σ = 264871188998. Its totient is φ = 264871188996.

The previous prime is 264871188977. The next prime is 264871189001. The reversal of 264871188997 is 799881178462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253023084196 + 11848104801 = 503014^2 + 108849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264871188997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264871188977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132435594498 + 132435594499.

It is an arithmetic number, because the mean of its divisors is an integer number (132435594499).

Almost surely, 2^264871188997 is an apocalyptic number.

It is an amenable number.

264871188997 is a deficient number, since it is larger than the sum of its proper divisors (1).

264871188997 is an equidigital number, since it uses as much as digits as its factorization.

264871188997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97542144, while the sum is 70.

The spelling of 264871188997 in words is "two hundred sixty-four billion, eight hundred seventy-one million, one hundred eighty-eight thousand, nine hundred ninety-seven".