1239955086980 has 24 divisors (see below), whose sum is σ = 2603926649688. Its totient is φ = 495978041088.

The previous prime is 1239955086913. The next prime is 1239955086991. The reversal of 1239955086980 is 896805599321.

It can be written as a sum of positive squares in 4 ways, for example, as 438156620356 + 801798466624 = 661934^2 + 895432^2 .

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, 4508792 + ... + 4775888.

It is an arithmetic number, because the mean of its divisors is an integer number (108496943737).

Almost surely, 2^{1239955086980} is an apocalyptic number.

1239955086980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1239955086980 is an abundant number, since it is smaller than the sum of its proper divisors (1363971562708).

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

1239955086980 is a wasteful number, since it uses less digits than its factorization.

1239955086980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499223 (or 499221 counting only the distinct ones).

The product of its (nonzero) digits is 41990400, while the sum is 65.

The spelling of 1239955086980 in words is "one trillion, two hundred thirty-nine billion, nine hundred fifty-five million, eighty-six thousand, nine hundred eighty".