19034303449 has 16 divisors (see below), whose sum is σ = 21942466560. Its totient is φ = 16173973440.

The previous prime is 19034303399. The next prime is 19034303471. The reversal of 19034303449 is 94430343091.

It is a cyclic number.

It is not a de Polignac number, because 19034303449 - 2³¹ = 16886819801 is a prime.

It is a super-2 number, since 2×19034303449² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19034303549) 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, 367447 + ... + 416035.

It is an arithmetic number, because the mean of its divisors is an integer number (1371404160).

Almost surely, 2^19034303449 is an apocalyptic number.

It is an amenable number.

19034303449 is a deficient number, since it is larger than the sum of its proper divisors (2908163111).

19034303449 is a wasteful number, since it uses less digits than its factorization.

19034303449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49080.

The product of its (nonzero) digits is 139968, while the sum is 40.

The spelling of 19034303449 in words is "nineteen billion, thirty-four million, three hundred three thousand, four hundred forty-nine".