31450172054 has 12 divisors (see below), whose sum is σ = 54877341204. Its totient is φ = 13478645124.

The previous prime is 31450172029. The next prime is 31450172063. The reversal of 31450172054 is 45027105413.

It is a super-2 number, since 2×31450172054² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31450172054.

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 5 ways as a sum of consecutive naturals, for example, 160459964 + ... + 160460159.

It is an arithmetic number, because the mean of its divisors is an integer number (4573111767).

Almost surely, 2^31450172054 is an apocalyptic number.

31450172054 is a deficient number, since it is larger than the sum of its proper divisors (23427169150).

31450172054 is a wasteful number, since it uses less digits than its factorization.

31450172054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320920139 (or 320920132 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

Adding to 31450172054 its reverse (45027105413), we get a palindrome (76477277467).

The spelling of 31450172054 in words is "thirty-one billion, four hundred fifty million, one hundred seventy-two thousand, fifty-four".