28430390264 has 8 divisors (see below), whose sum is σ = 53306981760. Its totient is φ = 14215195128.

The previous prime is 28430390257. The next prime is 28430390293. The reversal of 28430390264 is 46209303482.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1776899384 + ... + 1776899399.

It is an arithmetic number, because the mean of its divisors is an integer number (6663372720).

Almost surely, 2^28430390264 is an apocalyptic number.

It is an amenable number.

28430390264 is a deficient number, since it is larger than the sum of its proper divisors (24876591496).

28430390264 is a wasteful number, since it uses less digits than its factorization.

28430390264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3553798789 (or 3553798785 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 28430390264 in words is "twenty-eight billion, four hundred thirty million, three hundred ninety thousand, two hundred sixty-four".