19149926756 has 24 divisors (see below), whose sum is σ = 34427405376. Its totient is φ = 9313665120.

The previous prime is 19149926737. The next prime is 19149926759. The reversal of 19149926756 is 65762994191.

It is a junction number, because it is equal to n+sod(n) for n = 19149926695 and 19149926704.

It is not an unprimeable number, because it can be changed into a prime (19149926759) 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 7 ways as a sum of consecutive naturals, for example, 607865 + ... + 638591.

It is an arithmetic number, because the mean of its divisors is an integer number (1434475224).

Almost surely, 2^19149926756 is an apocalyptic number.

It is an amenable number.

19149926756 is a deficient number, since it is larger than the sum of its proper divisors (15277478620).

19149926756 is a wasteful number, since it uses less digits than its factorization.

19149926756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34979 (or 34977 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 59.

The spelling of 19149926756 in words is "nineteen billion, one hundred forty-nine million, nine hundred twenty-six thousand, seven hundred fifty-six".