19140562049 has 24 divisors (see below), whose sum is σ = 22834526208. Its totient is φ = 15715123200.

The previous prime is 19140562037. The next prime is 19140562061. The reversal of 19140562049 is 94026504191.

It is an interprime number because it is at equal distance from previous prime (19140562037) and next prime (19140562061).

It is not a de Polignac number, because 19140562049 - 2⁴ = 19140562033 is a prime.

It is a super-2 number, since 2×19140562049² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19140561997 and 19140562015.

It is not an unprimeable number, because it can be changed into a prime (19140562069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 734849 + ... + 760449.

It is an arithmetic number, because the mean of its divisors is an integer number (951438592).

Almost surely, 2^19140562049 is an apocalyptic number.

It is an amenable number.

19140562049 is a deficient number, since it is larger than the sum of its proper divisors (3693964159).

19140562049 is a wasteful number, since it uses less digits than its factorization.

19140562049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25793 (or 25764 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 19140562049 in words is "nineteen billion, one hundred forty million, five hundred sixty-two thousand, forty-nine".