15420431224254 has 96 divisors (see below), whose sum is σ = 38086697249280. Its totient is φ = 4135728989952.

The previous prime is 15420431224229. The next prime is 15420431224259. The reversal of 15420431224254 is 45242213402451.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15420431224259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2176102 + ... + 5964585.

It is an arithmetic number, because the mean of its divisors is an integer number (396736429680).

Almost surely, 2^{15420431224254} is an apocalyptic number.

15420431224254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

15420431224254 is an abundant number, since it is smaller than the sum of its proper divisors (22666266025026).

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

15420431224254 is a wasteful number, since it uses less digits than its factorization.

15420431224254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8141102 (or 8141095 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 39.

The spelling of 15420431224254 in words is "fifteen trillion, four hundred twenty billion, four hundred thirty-one million, two hundred twenty-four thousand, two hundred fifty-four".