1020735239928 has 64 divisors (see below), whose sum is σ = 2560673070720. Its totient is φ = 339067747200.

The previous prime is 1020735239911. The next prime is 1020735239957. The reversal of 1020735239928 is 8299325370201.

It is a happy number.

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, 27149383 + ... + 27186953.

It is an arithmetic number, because the mean of its divisors is an integer number (40010516730).

Almost surely, 2^{1020735239928} is an apocalyptic number.

It is an amenable number.

1020735239928 is an abundant number, since it is smaller than the sum of its proper divisors (1539937830792).

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

1020735239928 is a wasteful number, since it uses less digits than its factorization.

1020735239928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41468 (or 41464 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 1020735239928 in words is "one trillion, twenty billion, seven hundred thirty-five million, two hundred thirty-nine thousand, nine hundred twenty-eight".