13951293407 has 4 divisors (see below), whose sum is σ = 14432372520. Its totient is φ = 13470214296.

The previous prime is 13951293397. The next prime is 13951293443. The reversal of 13951293407 is 70439215931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13951293407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13951293467) 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, 240539513 + ... + 240539570.

It is an arithmetic number, because the mean of its divisors is an integer number (3608093130).

Almost surely, 2^13951293407 is an apocalyptic number.

13951293407 is a deficient number, since it is larger than the sum of its proper divisors (481079113).

13951293407 is an equidigital number, since it uses as much as digits as its factorization.

13951293407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481079112.

The product of its (nonzero) digits is 204120, while the sum is 44.

The spelling of 13951293407 in words is "thirteen billion, nine hundred fifty-one million, two hundred ninety-three thousand, four hundred seven".