28374564120 has 128 divisors (see below), whose sum is σ = 100422512640. Its totient is φ = 6276395520.

The previous prime is 28374564091. The next prime is 28374564121. The reversal of 28374564120 is 2146547382.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28374564121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 518787 + ... + 570866.

It is an arithmetic number, because the mean of its divisors is an integer number (784550880).

Almost surely, 2^28374564120 is an apocalyptic number.

28374564120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28374564120 is an abundant number, since it is smaller than the sum of its proper divisors (72047948520).

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

28374564120 is a wasteful number, since it uses less digits than its factorization.

28374564120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089705 (or 1089701 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 28374564120 in words is "twenty-eight billion, three hundred seventy-four million, five hundred sixty-four thousand, one hundred twenty".