13156437953 has 8 divisors (see below), whose sum is σ = 13409478720. Its totient is φ = 12905278960.

The previous prime is 13156437947. The next prime is 13156437961. The reversal of 13156437953 is 35973465131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13156437953 - 2¹⁰ = 13156436929 is a prime.

It is a super-2 number, since 2×13156437953² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13156437898 and 13156437907.

It is not an unprimeable number, because it can be changed into a prime (13156437923) 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, 456323 + ... + 484296.

It is an arithmetic number, because the mean of its divisors is an integer number (1676184840).

Almost surely, 2^13156437953 is an apocalyptic number.

It is an amenable number.

13156437953 is a deficient number, since it is larger than the sum of its proper divisors (253040767).

13156437953 is an equidigital number, since it uses as much as digits as its factorization.

13156437953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940887.

The product of its digits is 1020600, while the sum is 47.

The spelling of 13156437953 in words is "thirteen billion, one hundred fifty-six million, four hundred thirty-seven thousand, nine hundred fifty-three".