219403860492 has 24 divisors (see below), whose sum is σ = 516472807536. Its totient is φ = 72487410688.

The previous prime is 219403860451. The next prime is 219403860499. The reversal of 219403860492 is 294068304912.

219403860492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (219403860499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80899773 + ... + 80902484.

It is an arithmetic number, because the mean of its divisors is an integer number (21519700314).

Almost surely, 2^219403860492 is an apocalyptic number.

It is an amenable number.

219403860492 is an abundant number, since it is smaller than the sum of its proper divisors (297068947044).

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

219403860492 is a wasteful number, since it uses less digits than its factorization.

219403860492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161802377 (or 161802375 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 219403860492 in words is "two hundred nineteen billion, four hundred three million, eight hundred sixty thousand, four hundred ninety-two".