19490104245 has 16 divisors (see below), whose sum is σ = 31192623360. Its totient is φ = 10391903424.

The previous prime is 19490104241. The next prime is 19490104261. The reversal of 19490104245 is 54240109491.

It is not a de Polignac number, because 19490104245 - 2² = 19490104241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19490104241) 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, 118410 + ... + 230219.

It is an arithmetic number, because the mean of its divisors is an integer number (1949538960).

Almost surely, 2^19490104245 is an apocalyptic number.

19490104245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19490104245 is a deficient number, since it is larger than the sum of its proper divisors (11702519115).

19490104245 is a wasteful number, since it uses less digits than its factorization.

19490104245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352364.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 19490104245 in words is "nineteen billion, four hundred ninety million, one hundred four thousand, two hundred forty-five".