13421437704 has 96 divisors (see below), whose sum is σ = 36877440600. Its totient is φ = 4409303040.

The previous prime is 13421437681. The next prime is 13421437717. The reversal of 13421437704 is 40773412431.

13421437704 is a `hidden beast` number, since 134 + 21 + 437 + 70 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 13319468100 + 101969604 = 115410^2 + 10098^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1510234 + ... + 1519094.

Almost surely, 2^13421437704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13421437704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18438720300).

13421437704 is an abundant number, since it is smaller than the sum of its proper divisors (23456002896).

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

13421437704 is a wasteful number, since it uses less digits than its factorization.

13421437704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9175 (or 9168 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The spelling of 13421437704 in words is "thirteen billion, four hundred twenty-one million, four hundred thirty-seven thousand, seven hundred four".