28470391140 has 48 divisors (see below), whose sum is σ = 80130169728. Its totient is φ = 7552763904.

The previous prime is 28470391127. The next prime is 28470391153. The reversal of 28470391140 is 4119307482.

It is an interprime number because it is at equal distance from previous prime (28470391127) and next prime (28470391153).

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, 1217712 + ... + 1240871.

It is an arithmetic number, because the mean of its divisors is an integer number (1669378536).

Almost surely, 2^28470391140 is an apocalyptic number.

28470391140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28470391140 is an abundant number, since it is smaller than the sum of its proper divisors (51659778588).

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

28470391140 is a wasteful number, since it uses less digits than its factorization.

28470391140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458788 (or 2458786 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 28470391140 in words is "twenty-eight billion, four hundred seventy million, three hundred ninety-one thousand, one hundred forty".