31401465289 has 8 divisors (see below), whose sum is σ = 33716901888. Its totient is φ = 29138061120.

The previous prime is 31401465269. The next prime is 31401465311. The reversal of 31401465289 is 98256410413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31401465289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31401465239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13006857 + ... + 13009270.

It is an arithmetic number, because the mean of its divisors is an integer number (4214612736).

Almost surely, 2^31401465289 is an apocalyptic number.

It is an amenable number.

31401465289 is a deficient number, since it is larger than the sum of its proper divisors (2315436599).

31401465289 is a wasteful number, since it uses less digits than its factorization.

31401465289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26016215.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 31401465289 in words is "thirty-one billion, four hundred one million, four hundred sixty-five thousand, two hundred eighty-nine".