13973051091601 has 4 divisors (see below), whose sum is σ = 15969201247552. Its totient is φ = 11976900935652.

The previous prime is 13973051091599. The next prime is 13973051091613. The reversal of 13973051091601 is 10619015037931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13973051091601 - 2¹ = 13973051091599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13973051091691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 998075077965 + ... + 998075077978.

It is an arithmetic number, because the mean of its divisors is an integer number (3992300311888).

Almost surely, 2^{13973051091601} is an apocalyptic number.

It is an amenable number.

13973051091601 is a deficient number, since it is larger than the sum of its proper divisors (1996150155951).

13973051091601 is an equidigital number, since it uses as much as digits as its factorization.

13973051091601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996150155950.

The product of its (nonzero) digits is 153090, while the sum is 46.

The spelling of 13973051091601 in words is "thirteen trillion, nine hundred seventy-three billion, fifty-one million, ninety-one thousand, six hundred one".