445504155202439 has 2 divisors, whose sum is σ = 445504155202440. Its totient is φ = 445504155202438.

The previous prime is 445504155202409. The next prime is 445504155202453. The reversal of 445504155202439 is 934202551405544.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445504155202439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445504155202409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222752077601219 + 222752077601220.

It is an arithmetic number, because the mean of its divisors is an integer number (222752077601220).

Almost surely, 2^{445504155202439} is an apocalyptic number.

445504155202439 is a deficient number, since it is larger than the sum of its proper divisors (1).

445504155202439 is an equidigital number, since it uses as much as digits as its factorization.

445504155202439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280000, while the sum is 53.

The spelling of 445504155202439 in words is "four hundred forty-five trillion, five hundred four billion, one hundred fifty-five million, two hundred two thousand, four hundred thirty-nine".