19477522508 has 6 divisors (see below), whose sum is σ = 34085664396. Its totient is φ = 9738761252.

The previous prime is 19477522501. The next prime is 19477522511. The reversal of 19477522508 is 80522577491.

It is a super-2 number, since 2×19477522508² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19477522501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2434690310 + ... + 2434690317.

It is an arithmetic number, because the mean of its divisors is an integer number (5680944066).

Almost surely, 2^19477522508 is an apocalyptic number.

It is an amenable number.

19477522508 is a deficient number, since it is larger than the sum of its proper divisors (14608141888).

19477522508 is a wasteful number, since it uses less digits than its factorization.

19477522508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4869380631 (or 4869380629 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 50.

The spelling of 19477522508 in words is "nineteen billion, four hundred seventy-seven million, five hundred twenty-two thousand, five hundred eight".