19046640045 has 16 divisors (see below), whose sum is σ = 30582315072. Its totient is φ = 10122311040.

The previous prime is 19046640037. The next prime is 19046640049. The reversal of 19046640045 is 54004664091.

It is not a de Polignac number, because 19046640045 - 2³ = 19046640037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19046639985 and 19046640012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19046640049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2239176 + ... + 2247665.

It is an arithmetic number, because the mean of its divisors is an integer number (1911394692).

Almost surely, 2^19046640045 is an apocalyptic number.

19046640045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19046640045 is a deficient number, since it is larger than the sum of its proper divisors (11535675027).

19046640045 is a wasteful number, since it uses less digits than its factorization.

19046640045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4487132.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 19046640045 in words is "nineteen billion, forty-six million, six hundred forty thousand, forty-five".