19140451371 has 24 divisors (see below), whose sum is σ = 28023872240. Its totient is φ = 12587679936.

The previous prime is 19140451367. The next prime is 19140451381. The reversal of 19140451371 is 17315404191.

It is not a de Polignac number, because 19140451371 - 2² = 19140451367 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19140451321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147681 + ... + 245133.

Almost surely, 2^19140451371 is an apocalyptic number.

19140451371 is a deficient number, since it is larger than the sum of its proper divisors (8883420869).

19140451371 is a wasteful number, since it uses less digits than its factorization.

19140451371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97755 (or 97752 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 19140451371 in words is "nineteen billion, one hundred forty million, four hundred fifty-one thousand, three hundred seventy-one".