4745497681 has 4 divisors (see below), whose sum is σ = 4759834864. Its totient is φ = 4731160500.

The previous prime is 4745497661. The next prime is 4745497697. The reversal of 4745497681 is 1867945474.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1867945474 = 2 ⋅933972737.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4745497681 is a prime.

It is a super-2 number, since 2×4745497681² = 45039496480752755522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4745497661) 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, 7168095 + ... + 7168756.

It is an arithmetic number, because the mean of its divisors is an integer number (1189958716).

Almost surely, 2^4745497681 is an apocalyptic number.

It is an amenable number.

4745497681 is a deficient number, since it is larger than the sum of its proper divisors (14337183).

4745497681 is a wasteful number, since it uses less digits than its factorization.

4745497681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14337182.

The product of its digits is 6773760, while the sum is 55.

The square root of 4745497681 is about 68887.5727617108. The cubic root of 4745497681 is about 1680.4564237244.

The spelling of 4745497681 in words is "four billion, seven hundred forty-five million, four hundred ninety-seven thousand, six hundred eighty-one".