13890040637 has 8 divisors (see below), whose sum is σ = 15641571072. Its totient is φ = 12219976800.

The previous prime is 13890040631. The next prime is 13890040657. The reversal of 13890040637 is 73604009831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13890040637 - 2³⁰ = 12816298813 is a prime.

It is a super-2 number, since 2×13890040637² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13890040594 and 13890040603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13890040631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20366288 + ... + 20366969.

It is an arithmetic number, because the mean of its divisors is an integer number (1955196384).

Almost surely, 2^13890040637 is an apocalyptic number.

It is an amenable number.

13890040637 is a deficient number, since it is larger than the sum of its proper divisors (1751530435).

13890040637 is a wasteful number, since it uses less digits than its factorization.

13890040637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40733299.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 13890040637 in words is "thirteen billion, eight hundred ninety million, forty thousand, six hundred thirty-seven".