19294079745 has 48 divisors (see below), whose sum is σ = 31727280960. Its totient is φ = 10011893376.

The previous prime is 19294079743. The next prime is 19294079771. The reversal of 19294079745 is 54797049291.

It is not a de Polignac number, because 19294079745 - 2¹ = 19294079743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19294079741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5929539 + ... + 5932791.

It is an arithmetic number, because the mean of its divisors is an integer number (660985020).

Almost surely, 2^19294079745 is an apocalyptic number.

19294079745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19294079745 is a deficient number, since it is larger than the sum of its proper divisors (12433201215).

19294079745 is a wasteful number, since it uses less digits than its factorization.

19294079745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3534 (or 3487 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 19294079745 in words is "nineteen billion, two hundred ninety-four million, seventy-nine thousand, seven hundred forty-five".