2323217978 has 4 divisors (see below), whose sum is σ = 3484826970. Its totient is φ = 1161608988.

The previous prime is 2323217969. The next prime is 2323218031. The reversal of 2323217978 is 8797123232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1986752329 + 336465649 = 44573^2 + 18343^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580804493 + ... + 580804496.

Almost surely, 2^2323217978 is an apocalyptic number.

2323217978 is a deficient number, since it is larger than the sum of its proper divisors (1161608992).

2323217978 is a wasteful number, since it uses less digits than its factorization.

2323217978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161608991.

The product of its digits is 254016, while the sum is 44.

The square root of 2323217978 is about 48199.7715554752. The cubic root of 2323217978 is about 1324.4329797408.

The spelling of 2323217978 in words is "two billion, three hundred twenty-three million, two hundred seventeen thousand, nine hundred seventy-eight".