13613290078 has 16 divisors (see below), whose sum is σ = 20856747024. Its totient is φ = 6662335680.

The previous prime is 13613290051. The next prime is 13613290079. The reversal of 13613290078 is 87009231631.

It is a self number, because there is not a number n which added to its sum of digits gives 13613290078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13613290079) 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, 302503 + ... + 344578.

It is an arithmetic number, because the mean of its divisors is an integer number (1303546689).

Almost surely, 2^13613290078 is an apocalyptic number.

13613290078 is a deficient number, since it is larger than the sum of its proper divisors (7243456946).

13613290078 is a wasteful number, since it uses less digits than its factorization.

13613290078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647307.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 13613290078 in words is "thirteen billion, six hundred thirteen million, two hundred ninety thousand, seventy-eight".