28626573140 has 24 divisors (see below), whose sum is σ = 65580877152. Its totient is φ = 10409662880.

The previous prime is 28626573077. The next prime is 28626573161. The reversal of 28626573140 is 4137562682.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 28626573091 and 28626573100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65060174 + ... + 65060613.

It is an arithmetic number, because the mean of its divisors is an integer number (2732536548).

Almost surely, 2^28626573140 is an apocalyptic number.

28626573140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28626573140 is an abundant number, since it is smaller than the sum of its proper divisors (36954304012).

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

28626573140 is a wasteful number, since it uses less digits than its factorization.

28626573140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130120807 (or 130120805 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 28626573140 in words is "twenty-eight billion, six hundred twenty-six million, five hundred seventy-three thousand, one hundred forty".