745188650 has 12 divisors (see below), whose sum is σ = 1386050982. Its totient is φ = 298075440.

The previous prime is 745188649. The next prime is 745188709. The reversal of 745188650 is 56881547.

It is a happy number.

745188650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 554555401 + 190633249 = 23549^2 + 13807^2 .

It is a super-2 number, since 2×745188650² = 1110612248177645000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7451837 + ... + 7451936.

Almost surely, 2^745188650 is an apocalyptic number.

745188650 is a deficient number, since it is larger than the sum of its proper divisors (640862332).

745188650 is a wasteful number, since it uses less digits than its factorization.

745188650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14903785 (or 14903780 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 745188650 is about 27298.1437097836. The cubic root of 745188650 is about 906.6132818613.

The spelling of 745188650 in words is "seven hundred forty-five million, one hundred eighty-eight thousand, six hundred fifty".