1239987469980 has 192 divisors, whose sum is σ = 4320828288000. Its totient is φ = 259249600512.

The previous prime is 1239987469967. The next prime is 1239987470039. The reversal of 1239987469980 is 899647899321.

It is a hoax number, since the sum of its digits (75) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2447665 + ... + 2910504.

It is an arithmetic number, because the mean of its divisors is an integer number (22504314000).

Almost surely, 2^{1239987469980} is an apocalyptic number.

1239987469980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1239987469980 is an abundant number, since it is smaller than the sum of its proper divisors (3080840818020).

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

1239987469980 is a wasteful number, since it uses less digits than its factorization.

1239987469980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5358236 (or 5358234 counting only the distinct ones).

The product of its (nonzero) digits is 423263232, while the sum is 75.

The spelling of 1239987469980 in words is "one trillion, two hundred thirty-nine billion, nine hundred eighty-seven million, four hundred sixty-nine thousand, nine hundred eighty".