13803854672957 has 4 divisors (see below), whose sum is σ = 14064304761180. Its totient is φ = 13543404584736.

The previous prime is 13803854672939. The next prime is 13803854673013. The reversal of 13803854672957 is 75927645830831.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11635050618361 + 2168804054596 = 3411019^2 + 1472686^2 .

It is a cyclic number.

It is not a de Polignac number, because 13803854672957 - 2⁶ = 13803854672893 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 (13803854672057) 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, 130225044032 + ... + 130225044137.

It is an arithmetic number, because the mean of its divisors is an integer number (3516076190295).

It is a 1-persistent number, because it is pandigital, but 2⋅13803854672957 = 27607709345914 is not.

Almost surely, 2^{13803854672957} is an apocalyptic number.

It is an amenable number.

13803854672957 is a deficient number, since it is larger than the sum of its proper divisors (260450088223).

13803854672957 is an equidigital number, since it uses as much as digits as its factorization.

13803854672957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260450088222.

The product of its (nonzero) digits is 304819200, while the sum is 68.

The spelling of 13803854672957 in words is "thirteen trillion, eight hundred three billion, eight hundred fifty-four million, six hundred seventy-two thousand, nine hundred fifty-seven".