15830619798 has 64 divisors (see below), whose sum is σ = 37098109440. Its totient is φ = 4408992000.

The previous prime is 15830619787. The next prime is 15830619799. The reversal of 15830619798 is 89791603851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15830619799) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2509248 + ... + 2515548.

It is an arithmetic number, because the mean of its divisors is an integer number (579657960).

Almost surely, 2^15830619798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15830619798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18549054720).

15830619798 is an abundant number, since it is smaller than the sum of its proper divisors (21267489642).

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

15830619798 is a wasteful number, since it uses less digits than its factorization.

15830619798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7813.

The product of its (nonzero) digits is 3265920, while the sum is 57.

It can be divided in two parts, 15830 and 619798, that added together give a triangular number (635628 = T₁₁₂₇).

The spelling of 15830619798 in words is "fifteen billion, eight hundred thirty million, six hundred nineteen thousand, seven hundred ninety-eight".