264401333102649 has 4 divisors (see below), whose sum is σ = 352535110803536. Its totient is φ = 176267555401764.

The previous prime is 264401333102609. The next prime is 264401333102663. The reversal of 264401333102649 is 946201333104462.

264401333102649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 264401333102649 - 2²⁰ = 264401332054073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 264401333102598 and 264401333102607.

It is not an unprimeable number, because it can be changed into a prime (264401333102609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44066888850439 + ... + 44066888850444.

It is an arithmetic number, because the mean of its divisors is an integer number (88133777700884).

Almost surely, 2^{264401333102649} is an apocalyptic number.

It is an amenable number.

264401333102649 is a deficient number, since it is larger than the sum of its proper divisors (88133777700887).

264401333102649 is an equidigital number, since it uses as much as digits as its factorization.

264401333102649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88133777700886.

The product of its (nonzero) digits is 2239488, while the sum is 48.

The spelling of 264401333102649 in words is "two hundred sixty-four trillion, four hundred one billion, three hundred thirty-three million, one hundred two thousand, six hundred forty-nine".