264619420531 has 4 divisors (see below), whose sum is σ = 276124612752. Its totient is φ = 253114228312.

The previous prime is 264619420523. The next prime is 264619420631. The reversal of 264619420531 is 135024916462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 264619420531 - 2³ = 264619420523 is a prime.

It is a super-2 number, since 2×264619420531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264619420501) 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, 5752596076 + ... + 5752596121.

It is an arithmetic number, because the mean of its divisors is an integer number (69031153188).

Almost surely, 2^264619420531 is an apocalyptic number.

264619420531 is a deficient number, since it is larger than the sum of its proper divisors (11505192221).

264619420531 is a wasteful number, since it uses less digits than its factorization.

264619420531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11505192220.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 264619420531 in words is "two hundred sixty-four billion, six hundred nineteen million, four hundred twenty thousand, five hundred thirty-one".