15420435044412 has 24 divisors (see below), whose sum is σ = 35982605075200. Its totient is φ = 5139917876016.

The previous prime is 15420435044359. The next prime is 15420435044447. The reversal of 15420435044412 is 21444053402451.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28109362 + ... + 28652697.

Almost surely, 2^{15420435044412} is an apocalyptic number.

15420435044412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15420435044412 is an abundant number, since it is smaller than the sum of its proper divisors (20562170030788).

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

15420435044412 is a wasteful number, since it uses less digits than its factorization.

15420435044412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56784705 (or 56784703 counting only the distinct ones).

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

Adding to 15420435044412 its reverse (21444053402451), we get a palindrome (36864488446863).

The spelling of 15420435044412 in words is "fifteen trillion, four hundred twenty billion, four hundred thirty-five million, forty-four thousand, four hundred twelve".