465769547989 has 2 divisors, whose sum is σ = 465769547990. Its totient is φ = 465769547988.

The previous prime is 465769547963. The next prime is 465769548007. The reversal of 465769547989 is 989745967564.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 448297202500 + 17472345489 = 669550^2 + 132183^2 .

It is a cyclic number.

It is not a de Polignac number, because 465769547989 - 2²⁷ = 465635330261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (465769547909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232884773994 + 232884773995.

It is an arithmetic number, because the mean of its divisors is an integer number (232884773995).

Almost surely, 2^465769547989 is an apocalyptic number.

It is an amenable number.

465769547989 is a deficient number, since it is larger than the sum of its proper divisors (1).

465769547989 is an equidigital number, since it uses as much as digits as its factorization.

465769547989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4115059200, while the sum is 79.

The spelling of 465769547989 in words is "four hundred sixty-five billion, seven hundred sixty-nine million, five hundred forty-seven thousand, nine hundred eighty-nine".