264748787420 has 48 divisors (see below), whose sum is σ = 610036570080. Its totient is φ = 95908989696.

The previous prime is 264748787383. The next prime is 264748787447. The reversal of 264748787420 is 24787847462.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 264748787420.

It is a congruent number.

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, 9592490 + ... + 9620049.

It is an arithmetic number, because the mean of its divisors is an integer number (12709095210).

Almost surely, 2^264748787420 is an apocalyptic number.

264748787420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264748787420 is an abundant number, since it is smaller than the sum of its proper divisors (345287782660).

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

264748787420 is a wasteful number, since it uses less digits than its factorization.

264748787420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19212614 (or 19212612 counting only the distinct ones).

The product of its (nonzero) digits is 33718272, while the sum is 59.

The spelling of 264748787420 in words is "two hundred sixty-four billion, seven hundred forty-eight million, seven hundred eighty-seven thousand, four hundred twenty".