28150431194424 has 256 divisors, whose sum is σ = 89850406440960. Its totient is φ = 7136325504000.

The previous prime is 28150431194411. The next prime is 28150431194429. The reversal of 28150431194424 is 42449113405182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28150431194429) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104837859 + ... + 105106029.

It is an arithmetic number, because the mean of its divisors is an integer number (350978150160).

Almost surely, 2^{28150431194424} is an apocalyptic number.

28150431194424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28150431194424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44925203220480).

28150431194424 is an abundant number, since it is smaller than the sum of its proper divisors (61699975246536).

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

28150431194424 is a wasteful number, since it uses less digits than its factorization.

28150431194424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269562 (or 269558 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 28150431194424 in words is "twenty-eight trillion, one hundred fifty billion, four hundred thirty-one million, one hundred ninety-four thousand, four hundred twenty-four".