747770800745 has 4 divisors (see below), whose sum is σ = 897324960900. Its totient is φ = 598216640592.

The previous prime is 747770800741. The next prime is 747770800759. The reversal of 747770800745 is 547008077747.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107911593001 + 639859207744 = 328499^2 + 799912^2 .

It is a cyclic number.

It is not a de Polignac number, because 747770800745 - 2² = 747770800741 is a prime.

It is a super-2 number, since 2×747770800745² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (747770800741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74777080070 + ... + 74777080079.

It is an arithmetic number, because the mean of its divisors is an integer number (224331240225).

Almost surely, 2^747770800745 is an apocalyptic number.

It is an amenable number.

747770800745 is a deficient number, since it is larger than the sum of its proper divisors (149554160155).

747770800745 is a wasteful number, since it uses less digits than its factorization.

747770800745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149554160154.

The product of its (nonzero) digits is 10756480, while the sum is 56.

The spelling of 747770800745 in words is "seven hundred forty-seven billion, seven hundred seventy million, eight hundred thousand, seven hundred forty-five".