264604418491 has 8 divisors (see below), whose sum is σ = 305522628320. Its totient is φ = 224465603328.

The previous prime is 264604418387. The next prime is 264604418531. The reversal of 264604418491 is 194814406462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264604418491 - 2²¹ = 264602321339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264604418191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194847936 + ... + 194849293.

It is an arithmetic number, because the mean of its divisors is an integer number (38190328540).

Almost surely, 2^264604418491 is an apocalyptic number.

264604418491 is a deficient number, since it is larger than the sum of its proper divisors (40918209829).

264604418491 is an equidigital number, since it uses as much as digits as its factorization.

264604418491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389697333.

The product of its (nonzero) digits is 1327104, while the sum is 49.

The spelling of 264604418491 in words is "two hundred sixty-four billion, six hundred four million, four hundred eighteen thousand, four hundred ninety-one".