245641652434 has 4 divisors (see below), whose sum is σ = 368462478654. Its totient is φ = 122820826216.

The previous prime is 245641652419. The next prime is 245641652441. The reversal of 245641652434 is 434256146542.

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., 212472136809 + 33169515625 = 460947^2 + 182125^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61410413107 + ... + 61410413110.

Almost surely, 2^245641652434 is an apocalyptic number.

245641652434 is a deficient number, since it is larger than the sum of its proper divisors (122820826220).

245641652434 is a wasteful number, since it uses less digits than its factorization.

245641652434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122820826219.

The product of its digits is 2764800, while the sum is 46.

Adding to 245641652434 its reverse (434256146542), we get a palindrome (679897798976).

The spelling of 245641652434 in words is "two hundred forty-five billion, six hundred forty-one million, six hundred fifty-two thousand, four hundred thirty-four".