28900853838 has 32 divisors (see below), whose sum is σ = 64655172000. Its totient is φ = 9568960128.

The previous prime is 28900853827. The next prime is 28900853851. The reversal of 28900853838 is 83835800982.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 1787931 + ... + 1804022.

It is an arithmetic number, because the mean of its divisors is an integer number (2020474125).

Almost surely, 2^28900853838 is an apocalyptic number.

28900853838 is an abundant number, since it is smaller than the sum of its proper divisors (35754318162).

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

28900853838 is a wasteful number, since it uses less digits than its factorization.

28900853838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3592113 (or 3592107 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 28900853838 in words is "twenty-eight billion, nine hundred million, eight hundred fifty-three thousand, eight hundred thirty-eight".