1288880004840 has 64 divisors (see below), whose sum is σ = 4034754806400. Its totient is φ = 328757797632.

The previous prime is 1288880004809. The next prime is 1288880004887. The reversal of 1288880004840 is 484000888821.

It is a super-2 number, since 2×1288880004840² (a number of 25 digits) contains 22 as substring.

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, 233489995 + ... + 233495514.

It is an arithmetic number, because the mean of its divisors is an integer number (63043043850).

Almost surely, 2^{1288880004840} is an apocalyptic number.

1288880004840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1288880004840 is an abundant number, since it is smaller than the sum of its proper divisors (2745874801560).

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

1288880004840 is a wasteful number, since it uses less digits than its factorization.

1288880004840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466985546 (or 466985542 counting only the distinct ones).

The product of its (nonzero) digits is 1048576, while the sum is 51.

It can be divided in two parts, 1288 and 880004840, that added together give a triangular number (880006128 = T₄₁₉₅₂).

The spelling of 1288880004840 in words is "one trillion, two hundred eighty-eight billion, eight hundred eighty million, four thousand, eight hundred forty".