13437211557 has 32 divisors (see below), whose sum is σ = 22343307264. Its totient is φ = 6978456000.

The previous prime is 13437211477. The next prime is 13437211573. The reversal of 13437211557 is 75511273431.

13437211557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13437211557 - 2²² = 13433017253 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13437211057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1299307 + ... + 1309607.

It is an arithmetic number, because the mean of its divisors is an integer number (698228352).

Almost surely, 2^13437211557 is an apocalyptic number.

It is an amenable number.

13437211557 is a deficient number, since it is larger than the sum of its proper divisors (8906095707).

13437211557 is a wasteful number, since it uses less digits than its factorization.

13437211557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15969.

The product of its digits is 88200, while the sum is 39.

Adding to 13437211557 its reverse (75511273431), we get a palindrome (88948484988).

The spelling of 13437211557 in words is "thirteen billion, four hundred thirty-seven million, two hundred eleven thousand, five hundred fifty-seven".