264390287530 has 16 divisors (see below), whose sum is σ = 476067870720. Its totient is φ = 105719369872.

The previous prime is 264390287527. The next prime is 264390287537. The reversal of 264390287530 is 35782093462.

It is not an unprimeable number, because it can be changed into a prime (264390287537) 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, 4562914 + ... + 4620493.

It is an arithmetic number, because the mean of its divisors is an integer number (29754241920).

Almost surely, 2^264390287530 is an apocalyptic number.

264390287530 is a deficient number, since it is larger than the sum of its proper divisors (211677583190).

264390287530 is a wasteful number, since it uses less digits than its factorization.

264390287530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9186293.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 264390287530 in words is "two hundred sixty-four billion, three hundred ninety million, two hundred eighty-seven thousand, five hundred thirty".