19237690000 has 225 divisors, whose sum is σ = 49839384573. Its totient is φ = 7190208000.

The previous prime is 19237689983. The next prime is 19237690001. The reversal of 19237690000 is 9673291.

The square root of 19237690000 is 138700.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 13645043344 + 5592646656 = 116812^2 + 74784^2 .

It is a super-2 number, since 2×19237690000² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19237690001) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 263529964 + ... + 263530036.

Almost surely, 2^19237690000 is an apocalyptic number.

19237690000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19237690000 is the 138700-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19237690000

19237690000 is an abundant number, since it is smaller than the sum of its proper divisors (30601694573).

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

19237690000 is an frugal number, since it uses more digits than its factorization.

19237690000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 37.

It can be divided in two parts, 192376 and 90000, that added together give a triangular number (282376 = T₇₅₁).

The spelling of 19237690000 in words is "nineteen billion, two hundred thirty-seven million, six hundred ninety thousand".