13404672281 has 32 divisors (see below), whose sum is σ = 18033926400. Its totient is φ = 9622414080.

The previous prime is 13404672269. The next prime is 13404672287. The reversal of 13404672281 is 18227640431.

It is a cyclic number.

It is not a de Polignac number, because 13404672281 - 2³⁰ = 12330930457 is a prime.

It is a super-2 number, since 2×13404672281² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13404672287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 496355 + ... + 522663.

It is an arithmetic number, because the mean of its divisors is an integer number (563560200).

Almost surely, 2^13404672281 is an apocalyptic number.

13404672281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13404672281 is a deficient number, since it is larger than the sum of its proper divisors (4629254119).

13404672281 is a wasteful number, since it uses less digits than its factorization.

13404672281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26849.

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 13404672281 in words is "thirteen billion, four hundred four million, six hundred seventy-two thousand, two hundred eighty-one".