13920028612087 has 8 divisors (see below), whose sum is σ = 15058023365504. Its totient is φ = 12791637190368.

The previous prime is 13920028612079. The next prime is 13920028612099. The reversal of 13920028612087 is 78021682002931.

13920028612087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13920028612087 - 2³ = 13920028612079 is a prime.

It is a super-2 number, since 2×13920028612087² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13920028612087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13920028619087) 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, 2400829908 + ... + 2400835705.

It is an arithmetic number, because the mean of its divisors is an integer number (1882252920688).

Almost surely, 2^{13920028612087} is an apocalyptic number.

13920028612087 is a deficient number, since it is larger than the sum of its proper divisors (1137994753417).

13920028612087 is a wasteful number, since it uses less digits than its factorization.

13920028612087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4801665849.

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 13920028612087 in words is "thirteen trillion, nine hundred twenty billion, twenty-eight million, six hundred twelve thousand, eighty-seven".