28736947298850 has 96 divisors (see below), whose sum is σ = 81610646584320. Its totient is φ = 6555386437440.

The previous prime is 28736947298833. The next prime is 28736947298861. The reversal of 28736947298850 is 5889274963782.

It is a super-2 number, since 2×28736947298850² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26677140 + ... + 27733439.

It is an arithmetic number, because the mean of its divisors is an integer number (850110901920).

Almost surely, 2^{28736947298850} is an apocalyptic number.

28736947298850 is an abundant number, since it is smaller than the sum of its proper divisors (52873699285470).

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

28736947298850 is a wasteful number, since it uses less digits than its factorization.

28736947298850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54411104 (or 54411099 counting only the distinct ones).

The product of its (nonzero) digits is 2926264320, while the sum is 78.

The spelling of 28736947298850 in words is "twenty-eight trillion, seven hundred thirty-six billion, nine hundred forty-seven million, two hundred ninety-eight thousand, eight hundred fifty".