19951432230 has 32 divisors (see below), whose sum is σ = 47908762848. Its totient is φ = 5317568000.

The previous prime is 19951432219. The next prime is 19951432247. The reversal of 19951432230 is 3223415991.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117891 + ... + 231950.

It is an arithmetic number, because the mean of its divisors is an integer number (1497148839).

Almost surely, 2^19951432230 is an apocalyptic number.

19951432230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19951432230 is an abundant number, since it is smaller than the sum of its proper divisors (27957330618).

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

19951432230 is a wasteful number, since it uses less digits than its factorization.

19951432230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351752.

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 19951432230 in words is "nineteen billion, nine hundred fifty-one million, four hundred thirty-two thousand, two hundred thirty".