13953208757 has 4 divisors (see below), whose sum is σ = 14149732896. Its totient is φ = 13756684620.

The previous prime is 13953208751. The next prime is 13953208769. The reversal of 13953208757 is 75780235931.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75780235931 = 4013 ⋅18883687.

It is a cyclic number.

It is not a de Polignac number, because 13953208757 - 2⁸ = 13953208501 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 (13953208751) 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, 98261963 + ... + 98262104.

It is an arithmetic number, because the mean of its divisors is an integer number (3537433224).

Almost surely, 2^13953208757 is an apocalyptic number.

It is an amenable number.

13953208757 is a deficient number, since it is larger than the sum of its proper divisors (196524139).

13953208757 is an equidigital number, since it uses as much as digits as its factorization.

13953208757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196524138.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The spelling of 13953208757 in words is "thirteen billion, nine hundred fifty-three million, two hundred eight thousand, seven hundred fifty-seven".