219519736972 has 24 divisors (see below), whose sum is σ = 391718250000. Its totient is φ = 107610213696.

The previous prime is 219519736967. The next prime is 219519737027. The reversal of 219519736972 is 279637915912.

It is a self number, because there is not a number n which added to its sum of digits gives 219519736972.

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, 1158847 + ... + 1334902.

It is an arithmetic number, because the mean of its divisors is an integer number (16321593750).

Almost surely, 2^219519736972 is an apocalyptic number.

It is an amenable number.

219519736972 is a deficient number, since it is larger than the sum of its proper divisors (172198513028).

219519736972 is a wasteful number, since it uses less digits than its factorization.

219519736972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494185 (or 2494183 counting only the distinct ones).

The product of its digits is 12859560, while the sum is 61.

The spelling of 219519736972 in words is "two hundred nineteen billion, five hundred nineteen million, seven hundred thirty-six thousand, nine hundred seventy-two".