2179769474 has 8 divisors (see below), whose sum is σ = 3290480508. Its totient is φ = 1082942640.

The previous prime is 2179769447. The next prime is 2179769477. The reversal of 2179769474 is 4749679712.

It can be written as a sum of positive squares in 2 ways, for example, as 2046205225 + 133564249 = 45235^2 + 11557^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2179769477) 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, 3470657 + ... + 3471284.

Almost surely, 2^2179769474 is an apocalyptic number.

2179769474 is a deficient number, since it is larger than the sum of its proper divisors (1110711034).

2179769474 is a wasteful number, since it uses less digits than its factorization.

2179769474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6942100.

The product of its digits is 5334336, while the sum is 56.

The square root of 2179769474 is about 46688.0013922207. The cubic root of 2179769474 is about 1296.5925506489.

The spelling of 2179769474 in words is "two billion, one hundred seventy-nine million, seven hundred sixty-nine thousand, four hundred seventy-four".