264404240642143 has 16 divisors (see below), whose sum is σ = 302601070416960. Its totient is φ = 226313718681600.

The previous prime is 264404240642089. The next prime is 264404240642219. The reversal of 264404240642143 is 341246042404462.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 264404240642143 - 2³⁷ = 264266801688671 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 264404240642093 and 264404240642102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264404241642143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24599583 + ... + 33674143.

It is an arithmetic number, because the mean of its divisors is an integer number (18912566901060).

Almost surely, 2^{264404240642143} is an apocalyptic number.

264404240642143 is a deficient number, since it is larger than the sum of its proper divisors (38196829774817).

264404240642143 is an equidigital number, since it uses as much as digits as its factorization.

264404240642143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9080418.

The product of its (nonzero) digits is 3538944, while the sum is 46.

The spelling of 264404240642143 in words is "two hundred sixty-four trillion, four hundred four billion, two hundred forty million, six hundred forty-two thousand, one hundred forty-three".