219425642496 has 96 divisors (see below), whose sum is σ = 649991487600. Its totient is φ = 73141862400.

The previous prime is 219425642407. The next prime is 219425642507. The reversal of 219425642496 is 694246524912.

It is a happy number.

219425642496 is a `hidden beast` number, since 2 + 1 + 94 + 2 + 5 + 64 + 2 + 496 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×219425642496² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1928805 + ... + 2039396.

Almost surely, 2^219425642496 is an apocalyptic number.

It is an amenable number.

219425642496 is an abundant number, since it is smaller than the sum of its proper divisors (430565845104).

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

219425642496 is an equidigital number, since it uses as much as digits as its factorization.

219425642496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968232 (or 3968206 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 219425642496 in words is "two hundred nineteen billion, four hundred twenty-five million, six hundred forty-two thousand, four hundred ninety-six".