19485307849 has 8 divisors (see below), whose sum is σ = 22353598080. Its totient is φ = 16638186336.

The previous prime is 19485307847. The next prime is 19485307871. The reversal of 19485307849 is 94870358491.

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 19485307849 - 2¹ = 19485307847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19485307793 and 19485307802.

It is not an unprimeable number, because it can be changed into a prime (19485307847) 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, 5290204 + ... + 5293885.

It is an arithmetic number, because the mean of its divisors is an integer number (2794199760).

Almost surely, 2^19485307849 is an apocalyptic number.

It is an amenable number.

19485307849 is a deficient number, since it is larger than the sum of its proper divisors (2868290231).

19485307849 is a wasteful number, since it uses less digits than its factorization.

19485307849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10584359.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 19485307849 in words is "nineteen billion, four hundred eighty-five million, three hundred seven thousand, eight hundred forty-nine".