245780022458 has 4 divisors (see below), whose sum is σ = 368670033690. Its totient is φ = 122890011228.

The previous prime is 245780022457. The next prime is 245780022461. The reversal of 245780022458 is 854220087542.

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., 238893180289 + 6886842169 = 488767^2 + 82987^2 .

It is not an unprimeable number, because it can be changed into a prime (245780022457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61445005613 + ... + 61445005616.

Almost surely, 2^245780022458 is an apocalyptic number.

245780022458 is a deficient number, since it is larger than the sum of its proper divisors (122890011232).

245780022458 is a wasteful number, since it uses less digits than its factorization.

245780022458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122890011231.

The product of its (nonzero) digits is 1433600, while the sum is 47.

The spelling of 245780022458 in words is "two hundred forty-five billion, seven hundred eighty million, twenty-two thousand, four hundred fifty-eight".