1004128711980 has 48 divisors (see below), whose sum is σ = 2811652107264. Its totient is φ = 267758921920.

The previous prime is 1004128711939. The next prime is 1004128711981. The reversal of 1004128711980 is 891178214001.

It is a super-2 number, since 2×1004128711980² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1004128711981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1699525 + ... + 2212835.

It is an arithmetic number, because the mean of its divisors is an integer number (58576085568).

Almost surely, 2^{1004128711980} is an apocalyptic number.

1004128711980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004128711980 is an abundant number, since it is smaller than the sum of its proper divisors (1807523395284).

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

1004128711980 is a wasteful number, since it uses less digits than its factorization.

1004128711980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545926 (or 545924 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 42.

The spelling of 1004128711980 in words is "one trillion, four billion, one hundred twenty-eight million, seven hundred eleven thousand, nine hundred eighty".