19490104237 has 8 divisors (see below), whose sum is σ = 19610571456. Its totient is φ = 19369682112.

The previous prime is 19490104157. The next prime is 19490104241. The reversal of 19490104237 is 73240109491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19490104237 - 2¹¹ = 19490102189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19490104237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19490104267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1374538 + ... + 1388644.

It is an arithmetic number, because the mean of its divisors is an integer number (2451321432).

Almost surely, 2^19490104237 is an apocalyptic number.

It is an amenable number.

19490104237 is a deficient number, since it is larger than the sum of its proper divisors (120467219).

19490104237 is a wasteful number, since it uses less digits than its factorization.

19490104237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22547.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 19490104237 in words is "nineteen billion, four hundred ninety million, one hundred four thousand, two hundred thirty-seven".