19492370748 has 72 divisors (see below), whose sum is σ = 52516507680. Its totient is φ = 6074726400.

The previous prime is 19492370707. The next prime is 19492370749. The reversal of 19492370748 is 84707329491.

19492370748 is a `hidden beast` number, since 19 + 492 + 3 + 70 + 74 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 19492370694 and 19492370703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19492370749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13053 + ... + 197876.

It is an arithmetic number, because the mean of its divisors is an integer number (729395940).

Almost surely, 2^19492370748 is an apocalyptic number.

19492370748 is a gapful number since it is divisible by the number (18) 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 19492370748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26258253840).

19492370748 is an abundant number, since it is smaller than the sum of its proper divisors (33024136932).

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

19492370748 is a wasteful number, since it uses less digits than its factorization.

19492370748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211107 (or 211102 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 19492370748 in words is "nineteen billion, four hundred ninety-two million, three hundred seventy thousand, seven hundred forty-eight".