219140079376 has 45 divisors (see below), whose sum is σ = 436507290261. Its totient is φ = 106574982336.

The previous prime is 219140079359. The next prime is 219140079377. The reversal of 219140079376 is 673970041912.

The square root of 219140079376 is 468124.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 196089552400 + 23050526976 = 442820^2 + 151824^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219140079377) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 69280771 + ... + 69283933.

Almost surely, 2^219140079376 is an apocalyptic number.

219140079376 is the 468124-th square number.

It is an amenable number.

219140079376 is a deficient number, since it is larger than the sum of its proper divisors (217367210885).

219140079376 is an frugal number, since it uses more digits than its factorization.

219140079376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6408 (or 3202 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 49.

Multiplying 219140079376 by its sum of digits (49), we get a square (10737863889424 = 3276868²).

The spelling of 219140079376 in words is "two hundred nineteen billion, one hundred forty million, seventy-nine thousand, three hundred seventy-six".