31445544105 has 24 divisors (see below), whose sum is σ = 54523946880. Its totient is φ = 16765314720.

The previous prime is 31445544101. The next prime is 31445544173. The reversal of 31445544105 is 50144554413.

31445544105 is a `hidden beast` number, since 3 + 1 + 4 + 4 + 5 + 544 + 105 = 666.

It is not a de Polignac number, because 31445544105 - 2² = 31445544101 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 31445544105.

It is not an unprimeable number, because it can be changed into a prime (31445544101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19456 + ... + 251534.

It is an arithmetic number, because the mean of its divisors is an integer number (2271831120).

Almost surely, 2^31445544105 is an apocalyptic number.

It is an amenable number.

31445544105 is a deficient number, since it is larger than the sum of its proper divisors (23078402775).

31445544105 is a wasteful number, since it uses less digits than its factorization.

31445544105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235101 (or 235098 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 31445544105 in words is "thirty-one billion, four hundred forty-five million, five hundred forty-four thousand, one hundred five".