19590798942 has 128 divisors (see below), whose sum is σ = 51298168320. Its totient is φ = 5463659520.

The previous prime is 19590798937. The next prime is 19590798943. The reversal of 19590798942 is 24989709591.

It is a self number, because there is not a number n which added to its sum of digits gives 19590798942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19590798943) 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, 2722273 + ... + 2729459.

It is an arithmetic number, because the mean of its divisors is an integer number (400766940).

Almost surely, 2^19590798942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19590798942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25649084160).

19590798942 is an abundant number, since it is smaller than the sum of its proper divisors (31707369378).

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

19590798942 is a wasteful number, since it uses less digits than its factorization.

19590798942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575 (or 7569 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 63.

It can be divided in two parts, 195907 and 98942, that added together give a square (294849 = 543²).

The spelling of 19590798942 in words is "nineteen billion, five hundred ninety million, seven hundred ninety-eight thousand, nine hundred forty-two".