1028537522420 has 24 divisors (see below), whose sum is σ = 2159964086784. Its totient is φ = 411408287136.

The previous prime is 1028537522407. The next prime is 1028537522449. The reversal of 1028537522420 is 242257358201.

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, 942377 + ... + 1716143.

It is an arithmetic number, because the mean of its divisors is an integer number (89998503616).

Almost surely, 2^{1028537522420} is an apocalyptic number.

1028537522420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1028537522420 is an abundant number, since it is smaller than the sum of its proper divisors (1131426564364).

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

1028537522420 is a wasteful number, since it uses less digits than its factorization.

1028537522420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840239 (or 840237 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 41.

The spelling of 1028537522420 in words is "one trillion, twenty-eight billion, five hundred thirty-seven million, five hundred twenty-two thousand, four hundred twenty".