28950123356 has 48 divisors (see below), whose sum is σ = 64452998400. Its totient is φ = 11279262960.

The previous prime is 28950123347. The next prime is 28950123383. The reversal of 28950123356 is 65332105982.

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

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, 944030 + ... + 974213.

It is an arithmetic number, because the mean of its divisors is an integer number (1342770800).

Almost surely, 2^28950123356 is an apocalyptic number.

It is an amenable number.

28950123356 is an abundant number, since it is smaller than the sum of its proper divisors (35502875044).

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

28950123356 is a wasteful number, since it uses less digits than its factorization.

28950123356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918279 (or 1918263 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 28950123356 in words is "twenty-eight billion, nine hundred fifty million, one hundred twenty-three thousand, three hundred fifty-six".