28413086672 has 10 divisors (see below), whose sum is σ = 55050355458. Its totient is φ = 14206543328.

The previous prime is 28413086623. The next prime is 28413086701. The reversal of 28413086672 is 27668031482.

It can be written as a sum of positive squares in only one way, i.e., 25511756176 + 2901330496 = 159724^2 + 53864^2 .

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, 887908943 + ... + 887908974.

Almost surely, 2^28413086672 is an apocalyptic number.

It is an amenable number.

28413086672 is a deficient number, since it is larger than the sum of its proper divisors (26637268786).

28413086672 is a wasteful number, since it uses less digits than its factorization.

28413086672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775817925 (or 1775817919 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 28413086672 in words is "twenty-eight billion, four hundred thirteen million, eighty-six thousand, six hundred seventy-two".