24649894642 has 4 divisors (see below), whose sum is σ = 36974841966. Its totient is φ = 12324947320.

The previous prime is 24649894639. The next prime is 24649894681.

24649894642 is nontrivially palindromic in base 10.

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., 15308865441 + 9341029201 = 123729^2 + 96649^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6162473659 + ... + 6162473662.

Almost surely, 2^24649894642 is an apocalyptic number.

24649894642 is a deficient number, since it is larger than the sum of its proper divisors (12324947324).

24649894642 is a wasteful number, since it uses less digits than its factorization.

24649894642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12324947323.

The product of its digits is 23887872, while the sum is 58.

The spelling of 24649894642 in words is "twenty-four billion, six hundred forty-nine million, eight hundred ninety-four thousand, six hundred forty-two".