31450400045 has 8 divisors (see below), whose sum is σ = 37990417920. Its totient is φ = 24993694800.

The previous prime is 31450400039. The next prime is 31450400141. The reversal of 31450400045 is 54000405413.

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

It is not a de Polignac number, because 31450400045 - 2²² = 31446205741 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31450399987 and 31450400023.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20827325 + ... + 20828834.

It is an arithmetic number, because the mean of its divisors is an integer number (4748802240).

Almost surely, 2^31450400045 is an apocalyptic number.

It is an amenable number.

31450400045 is a deficient number, since it is larger than the sum of its proper divisors (6540017875).

31450400045 is a wasteful number, since it uses less digits than its factorization.

31450400045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41656315.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 31450400045 its reverse (54000405413), we get a palindrome (85450805458).

The spelling of 31450400045 in words is "thirty-one billion, four hundred fifty million, four hundred thousand, forty-five".