745053999946 has 4 divisors (see below), whose sum is σ = 1117580999922. Its totient is φ = 372526999972.

The previous prime is 745053999919. The next prime is 745053999953. The reversal of 745053999946 is 649999350547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649999350547 = 269 ⋅2416354463.

It can be written as a sum of positive squares in only one way, i.e., 653631825625 + 91422174321 = 808475^2 + 302361^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186263499985 + ... + 186263499988.

Almost surely, 2^745053999946 is an apocalyptic number.

745053999946 is a deficient number, since it is larger than the sum of its proper divisors (372526999976).

745053999946 is a wasteful number, since it uses less digits than its factorization.

745053999946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372526999975.

The product of its (nonzero) digits is 330674400, while the sum is 70.

The spelling of 745053999946 in words is "seven hundred forty-five billion, fifty-three million, nine hundred ninety-nine thousand, nine hundred forty-six".