13908609412 has 6 divisors (see below), whose sum is σ = 24340066478. Its totient is φ = 6954304704.

The previous prime is 13908609391. The next prime is 13908609443. The reversal of 13908609412 is 21490680931.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13396673536 + 511935876 = 115744^2 + 22626^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1738576173 + ... + 1738576180.

Almost surely, 2^13908609412 is an apocalyptic number.

It is an amenable number.

13908609412 is a deficient number, since it is larger than the sum of its proper divisors (10431457066).

13908609412 is a wasteful number, since it uses less digits than its factorization.

13908609412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3477152357 (or 3477152355 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 13908609412 in words is "thirteen billion, nine hundred eight million, six hundred nine thousand, four hundred twelve".