19297650452 has 12 divisors (see below), whose sum is σ = 33919660320. Its totient is φ = 9606318936.

The previous prime is 19297650451. The next prime is 19297650469. The reversal of 19297650452 is 25405679291.

It is a self number, because there is not a number n which added to its sum of digits gives 19297650452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19297650451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10625552 + ... + 10627367.

It is an arithmetic number, because the mean of its divisors is an integer number (2826638360).

Almost surely, 2^19297650452 is an apocalyptic number.

It is an amenable number.

19297650452 is a deficient number, since it is larger than the sum of its proper divisors (14622009868).

19297650452 is a wasteful number, since it uses less digits than its factorization.

19297650452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21253150 (or 21253148 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 50.

The spelling of 19297650452 in words is "nineteen billion, two hundred ninety-seven million, six hundred fifty thousand, four hundred fifty-two".