31068155449 has 16 divisors (see below), whose sum is σ = 33446286720. Its totient is φ = 28805293440.

The previous prime is 31068155423. The next prime is 31068155479. The reversal of 31068155449 is 94455186013.

It is a cyclic number.

It is not a de Polignac number, because 31068155449 - 2¹¹ = 31068153401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31068155399 and 31068155408.

It is not an unprimeable number, because it can be changed into a prime (31068155479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172909 + ... + 303370.

It is an arithmetic number, because the mean of its divisors is an integer number (2090392920).

Almost surely, 2^31068155449 is an apocalyptic number.

It is an amenable number.

31068155449 is a deficient number, since it is larger than the sum of its proper divisors (2378131271).

31068155449 is a wasteful number, since it uses less digits than its factorization.

31068155449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476400.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 31068155449 in words is "thirty-one billion, sixty-eight million, one hundred fifty-five thousand, four hundred forty-nine".