264031978530 has 32 divisors (see below), whose sum is σ = 634513892544. Its totient is φ = 70315511616.

The previous prime is 264031978513. The next prime is 264031978541. The reversal of 264031978530 is 35879130462.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 264031978530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5790412 + ... + 5835831.

It is an arithmetic number, because the mean of its divisors is an integer number (19828559142).

It is a 1-persistent number, because it is pandigital, but 2⋅264031978530 = 528063957060 is not.

Almost surely, 2^264031978530 is an apocalyptic number.

264031978530 is an abundant number, since it is smaller than the sum of its proper divisors (370481914014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264031978530 is a wasteful number, since it uses less digits than its factorization.

264031978530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11627010.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 264031978530 in words is "two hundred sixty-four billion, thirty-one million, nine hundred seventy-eight thousand, five hundred thirty".