19124717772 has 24 divisors (see below), whose sum is σ = 44964988992. Its totient is φ = 6326242000.

The previous prime is 19124717753. The next prime is 19124717779. The reversal of 19124717772 is 27771742191.

It is not an unprimeable number, because it can be changed into a prime (19124717779) 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, 6081354 + ... + 6084497.

It is an arithmetic number, because the mean of its divisors is an integer number (1873541208).

Almost surely, 2^19124717772 is an apocalyptic number.

19124717772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19124717772 is an abundant number, since it is smaller than the sum of its proper divisors (25840271220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19124717772 is a wasteful number, since it uses less digits than its factorization.

19124717772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12165989 (or 12165987 counting only the distinct ones).

The product of its digits is 345744, while the sum is 48.

The spelling of 19124717772 in words is "nineteen billion, one hundred twenty-four million, seven hundred seventeen thousand, seven hundred seventy-two".