13557821376 has 56 divisors (see below), whose sum is σ = 39132808704. Its totient is φ = 4108430080.

The previous prime is 13557821369. The next prime is 13557821383. The reversal of 13557821376 is 67312875531.

13557821376 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13557821369) and next prime (13557821383).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3207600 + ... + 3211823.

Almost surely, 2^13557821376 is an apocalyptic number.

13557821376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13557821376 is an abundant number, since it is smaller than the sum of its proper divisors (25574987328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13557821376 is a wasteful number, since it uses less digits than its factorization.

13557821376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6419449 (or 6419439 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 48.

The spelling of 13557821376 in words is "thirteen billion, five hundred fifty-seven million, eight hundred twenty-one thousand, three hundred seventy-six".