45608643946 has 4 divisors (see below), whose sum is σ = 68412965922. Its totient is φ = 22804321972.

The previous prime is 45608643929. The next prime is 45608643947. The reversal of 45608643946 is 64934680654.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64934680654 = 2 ⋅32467340327.

It can be written as a sum of positive squares in only one way, i.e., 44510450625 + 1098193321 = 210975^2 + 33139^2 .

It is not an unprimeable number, because it can be changed into a prime (45608643947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11402160985 + ... + 11402160988.

Almost surely, 2^45608643946 is an apocalyptic number.

45608643946 is a deficient number, since it is larger than the sum of its proper divisors (22804321976).

45608643946 is a wasteful number, since it uses less digits than its factorization.

45608643946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22804321975.

The product of its (nonzero) digits is 14929920, while the sum is 55.

The spelling of 45608643946 in words is "forty-five billion, six hundred eight million, six hundred forty-three thousand, nine hundred forty-six".