31421164415454 has 128 divisors (see below), whose sum is σ = 76358557647360. Its totient is φ = 9498318336000.

The previous prime is 31421164415441. The next prime is 31421164415479. The reversal of 31421164415454 is 45451446112413.

31421164415454 is a `hidden beast` number, since 3 + 1 + 4 + 2 + 1 + 1 + 64 + 41 + 545 + 4 = 666.

It is a super-2 number, since 2×31421164415454² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2526420124 + ... + 2526432560.

It is an arithmetic number, because the mean of its divisors is an integer number (596551231620).

Almost surely, 2^{31421164415454} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31421164415454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38179278823680).

31421164415454 is an abundant number, since it is smaller than the sum of its proper divisors (44937393231906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31421164415454 is a wasteful number, since it uses less digits than its factorization.

31421164415454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22503 (or 22497 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The spelling of 31421164415454 in words is "thirty-one trillion, four hundred twenty-one billion, one hundred sixty-four million, four hundred fifteen thousand, four hundred fifty-four".