18628777112028 has 24 divisors (see below), whose sum is σ = 43468930691088. Its totient is φ = 6209337499776.

The previous prime is 18628777112017. The next prime is 18628777112041. The reversal of 18628777112028 is 82021177782681.

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, 31554201 + ... + 32139152.

It is an arithmetic number, because the mean of its divisors is an integer number (1811205445462).

Almost surely, 2^{18628777112028} is an apocalyptic number.

It is an amenable number.

18628777112028 is an abundant number, since it is smaller than the sum of its proper divisors (24840153579060).

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

18628777112028 is a wasteful number, since it uses less digits than its factorization.

18628777112028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63717733 (or 63717731 counting only the distinct ones).

The product of its (nonzero) digits is 8429568, while the sum is 60.

The spelling of 18628777112028 in words is "eighteen trillion, six hundred twenty-eight billion, seven hundred seventy-seven million, one hundred twelve thousand, twenty-eight".