31434544645 has 16 divisors (see below), whose sum is σ = 43115050368. Its totient is φ = 21552707520.

The previous prime is 31434544633. The next prime is 31434544649. The reversal of 31434544645 is 54644543413.

It is not a de Polignac number, because 31434544645 - 2⁹ = 31434544133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31434544649) 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, 302367 + ... + 392803.

It is an arithmetic number, because the mean of its divisors is an integer number (2694690648).

Almost surely, 2^31434544645 is an apocalyptic number.

31434544645 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31434544645 is a deficient number, since it is larger than the sum of its proper divisors (11680505723).

31434544645 is an equidigital number, since it uses as much as digits as its factorization.

31434544645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100380.

The product of its digits is 1382400, while the sum is 43.

The spelling of 31434544645 in words is "thirty-one billion, four hundred thirty-four million, five hundred forty-four thousand, six hundred forty-five".