15428364464 has 20 divisors (see below), whose sum is σ = 29926184304. Its totient is φ = 7705478208.

The previous prime is 15428364437. The next prime is 15428364473. The reversal of 15428364464 is 46446382451.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529367 + ... + 557750.

Almost surely, 2^15428364464 is an apocalyptic number.

It is an amenable number.

15428364464 is a deficient number, since it is larger than the sum of its proper divisors (14497819840).

15428364464 is a wasteful number, since it uses less digits than its factorization.

15428364464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088012 (or 1088006 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 47.

The spelling of 15428364464 in words is "fifteen billion, four hundred twenty-eight million, three hundred sixty-four thousand, four hundred sixty-four".