199826415452 has 12 divisors (see below), whose sum is σ = 349709390016. Its totient is φ = 99909446880.

The previous prime is 199826415449. The next prime is 199826415457. The reversal of 199826415452 is 254514628991.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199826415457) 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, 818924 + ... + 1034547.

It is an arithmetic number, because the mean of its divisors is an integer number (29142449168).

Almost surely, 2^199826415452 is an apocalyptic number.

It is an amenable number.

199826415452 is a deficient number, since it is larger than the sum of its proper divisors (149882974564).

199826415452 is a wasteful number, since it uses less digits than its factorization.

199826415452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880428 (or 1880426 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 56.

The spelling of 199826415452 in words is "one hundred ninety-nine billion, eight hundred twenty-six million, four hundred fifteen thousand, four hundred fifty-two".