13900001387750 has 32 divisors (see below), whose sum is σ = 26021511360000. Its totient is φ = 5559849110400.

The previous prime is 13900001387707. The next prime is 13900001387791. The reversal of 13900001387750 is 5778310000931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8673851 + ... + 10150649.

It is an arithmetic number, because the mean of its divisors is an integer number (813172230000).

Almost surely, 2^{13900001387750} is an apocalyptic number.

13900001387750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13900001387750 is a deficient number, since it is larger than the sum of its proper divisors (12121509972250).

13900001387750 is a wasteful number, since it uses less digits than its factorization.

13900001387750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514465 (or 1514455 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 44.

The spelling of 13900001387750 in words is "thirteen trillion, nine hundred billion, one million, three hundred eighty-seven thousand, seven hundred fifty".