1378875012540 has 24 divisors (see below), whose sum is σ = 3860850035280. Its totient is φ = 367700003328.

The previous prime is 1378875012527. The next prime is 1378875012631. The reversal of 1378875012540 is 452105788731.

It is a congruent number.

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, 11490625045 + ... + 11490625164.

It is an arithmetic number, because the mean of its divisors is an integer number (160868751470).

Almost surely, 2^{1378875012540} is an apocalyptic number.

1378875012540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1378875012540 is an abundant number, since it is smaller than the sum of its proper divisors (2481975022740).

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

1378875012540 is a wasteful number, since it uses less digits than its factorization.

1378875012540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22981250221 (or 22981250219 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 51.

The spelling of 1378875012540 in words is "one trillion, three hundred seventy-eight billion, eight hundred seventy-five million, twelve thousand, five hundred forty".