28622700570820 has 48 divisors (see below), whose sum is σ = 63831155351040. Its totient is φ = 10750510342656.

The previous prime is 28622700570799. The next prime is 28622700570857. The reversal of 28622700570820 is 2807500722682.

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, 333244212 + ... + 333330091.

It is an arithmetic number, because the mean of its divisors is an integer number (1329815736480).

Almost surely, 2^{28622700570820} is an apocalyptic number.

28622700570820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28622700570820 is an abundant number, since it is smaller than the sum of its proper divisors (35208454780220).

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

28622700570820 is a wasteful number, since it uses less digits than its factorization.

28622700570820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666574444 (or 666574442 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 28622700570820 in words is "twenty-eight trillion, six hundred twenty-two billion, seven hundred million, five hundred seventy thousand, eight hundred twenty".