19526149696 has 21 divisors (see below), whose sum is σ = 38749421739. Its totient is φ = 9762515904.

The previous prime is 19526149633. The next prime is 19526149751. The reversal of 19526149696 is 69694162591.

The square root of 19526149696 is 139736.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19526149696.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1109155 + ... + 1126621.

It is an arithmetic number, because the mean of its divisors is an integer number (1845210559).

Almost surely, 2^19526149696 is an apocalyptic number.

19526149696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

19526149696 is the 139736-th square number.

It is an amenable number.

19526149696 is a deficient number, since it is larger than the sum of its proper divisors (19223272043).

19526149696 is an frugal number, since it uses more digits than its factorization.

19526149696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34946 (or 17469 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 58.

The spelling of 19526149696 in words is "nineteen billion, five hundred twenty-six million, one hundred forty-nine thousand, six hundred ninety-six".