28202026687480 has 32 divisors (see below), whose sum is σ = 63474078813840. Its totient is φ = 11277340672000.

The previous prime is 28202026687477. The next prime is 28202026687481. The reversal of 28202026687480 is 8478662020282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28202026687481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108305929 + ... + 108566008.

Almost surely, 2^{28202026687480} is an apocalyptic number.

28202026687480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28202026687480 is an abundant number, since it is smaller than the sum of its proper divisors (35272052126360).

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

28202026687480 is a wasteful number, since it uses less digits than its factorization.

28202026687480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216875199 (or 216875195 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 55.

The spelling of 28202026687480 in words is "twenty-eight trillion, two hundred two billion, twenty-six million, six hundred eighty-seven thousand, four hundred eighty".