1378000139724 has 72 divisors (see below), whose sum is σ = 3890156808720. Its totient is φ = 424000039104.

The previous prime is 1378000139707. The next prime is 1378000139729. The reversal of 1378000139724 is 4279310008731.

It is a self number, because there is not a number n which added to its sum of digits gives 1378000139724.

It is not an unprimeable number, because it can be changed into a prime (1378000139729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54514119 + ... + 54539390.

Almost surely, 2^{1378000139724} is an apocalyptic number.

It is an amenable number.

1378000139724 is an abundant number, since it is smaller than the sum of its proper divisors (2512156668996).

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

1378000139724 is a wasteful number, since it uses less digits than its factorization.

1378000139724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109053541 (or 109053527 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 1378000139724 in words is "one trillion, three hundred seventy-eight billion, one hundred thirty-nine thousand, seven hundred twenty-four".