15803225490 has 192 divisors, whose sum is σ = 44729884800. Its totient is φ = 3557578752.

The previous prime is 15803225447. The next prime is 15803225497. The reversal of 15803225490 is 9452230851.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (15803225497) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2790742 + ... + 2796398.

It is an arithmetic number, because the mean of its divisors is an integer number (232968150).

Almost surely, 2^15803225490 is an apocalyptic number.

15803225490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15803225490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22364942400).

15803225490 is an abundant number, since it is smaller than the sum of its proper divisors (28926659310).

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

15803225490 is a wasteful number, since it uses less digits than its factorization.

15803225490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5741 (or 5728 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

It can be divided in two parts, 1580 and 3225490, that added together give a triangular number (3227070 = T₂₅₄₀).

The spelling of 15803225490 in words is "fifteen billion, eight hundred three million, two hundred twenty-five thousand, four hundred ninety".