1028557852830 has 64 divisors (see below), whose sum is σ = 2742909972480. Its totient is φ = 274273191072.

The previous prime is 1028557852811. The next prime is 1028557852871. The reversal of 1028557852830 is 382587558201.

1028557852830 is a `hidden beast` number, since 1 + 0 + 2 + 8 + 557 + 8 + 5 + 2 + 83 + 0 = 666.

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 31 ways as a sum of consecutive naturals, for example, 15683167 + ... + 15748613.

It is an arithmetic number, because the mean of its divisors is an integer number (42857968320).

Almost surely, 2^{1028557852830} is an apocalyptic number.

1028557852830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1028557852830 is an abundant number, since it is smaller than the sum of its proper divisors (1714352119650).

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

1028557852830 is a wasteful number, since it uses less digits than its factorization.

1028557852830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123670 (or 123664 counting only the distinct ones).

The product of its (nonzero) digits is 5376000, while the sum is 54.

The spelling of 1028557852830 in words is "one trillion, twenty-eight billion, five hundred fifty-seven million, eight hundred fifty-two thousand, eight hundred thirty".