19972190330 has 8 divisors (see below), whose sum is σ = 35949942612. Its totient is φ = 7988876128.

The previous prime is 19972190321. The next prime is 19972190339. The reversal of 19972190330 is 3309127991.

It is a Cunningham number, because it is equal to 141323²+1.

It is an interprime number because it is at equal distance from previous prime (19972190321) and next prime (19972190339).

It can be written as a sum of positive squares in 2 ways, for example, as 19972190329 + 1 = 141323^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (19972190339) 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 3 ways as a sum of consecutive naturals, for example, 998609507 + ... + 998609526.

Almost surely, 2^19972190330 is an apocalyptic number.

19972190330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19972190330 is a deficient number, since it is larger than the sum of its proper divisors (15977752282).

19972190330 is a wasteful number, since it uses less digits than its factorization.

19972190330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997219040.

The product of its (nonzero) digits is 91854, while the sum is 44.

The spelling of 19972190330 in words is "nineteen billion, nine hundred seventy-two million, one hundred ninety thousand, three hundred thirty".