1239948487680 has 352 divisors, whose sum is σ = 4771012661760. Its totient is φ = 268499681280.

The previous prime is 1239948487649. The next prime is 1239948487733. The reversal of 1239948487680 is 867848499321.

It is a super-2 number, since 2×1239948487680² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1739400 + ... + 2346360.

Almost surely, 2^{1239948487680} is an apocalyptic number.

1239948487680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1239948487680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2385506330880).

1239948487680 is an abundant number, since it is smaller than the sum of its proper divisors (3531064174080).

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

1239948487680 is a wasteful number, since it uses less digits than its factorization.

1239948487680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607015 (or 606997 counting only the distinct ones).

The product of its (nonzero) digits is 167215104, while the sum is 69.

The spelling of 1239948487680 in words is "one trillion, two hundred thirty-nine billion, nine hundred forty-eight million, four hundred eighty-seven thousand, six hundred eighty".