19737542292 has 96 divisors (see below), whose sum is σ = 50050560000. Its totient is φ = 6017784192.

The previous prime is 19737542291. The next prime is 19737542339. The reversal of 19737542292 is 29224573791.

It is a super-2 number, since 2×19737542292² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19737542291) 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, 9872709 + ... + 9874707.

It is an arithmetic number, because the mean of its divisors is an integer number (521360000).

Almost surely, 2^19737542292 is an apocalyptic number.

19737542292 is a gapful number since it is divisible by the number (12) 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 19737542292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25025280000).

19737542292 is an abundant number, since it is smaller than the sum of its proper divisors (30313017708).

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

19737542292 is a wasteful number, since it uses less digits than its factorization.

19737542292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565 (or 2563 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 51.

The spelling of 19737542292 in words is "nineteen billion, seven hundred thirty-seven million, five hundred forty-two thousand, two hundred ninety-two".