4781153897 has 4 divisors (see below), whose sum is σ = 5148934980. Its totient is φ = 4413372816.

The previous prime is 4781153879. The next prime is 4781153947. The reversal of 4781153897 is 7983511874.

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 660027481 + 4121126416 = 25691^2 + 64196^2 .

It is a cyclic number.

It is not a de Polignac number, because 4781153897 - 2⁶ = 4781153833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4781153827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183890522 + ... + 183890547.

It is an arithmetic number, because the mean of its divisors is an integer number (1287233745).

Almost surely, 2^4781153897 is an apocalyptic number.

It is an amenable number.

4781153897 is a deficient number, since it is larger than the sum of its proper divisors (367781083).

4781153897 is a wasteful number, since it uses less digits than its factorization.

4781153897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367781082.

The product of its digits is 1693440, while the sum is 53.

The square root of 4781153897 is about 69145.8885039450. Note that the first 3 decimals coincide. The cubic root of 4781153897 is about 1684.6547378780.

The spelling of 4781153897 in words is "four billion, seven hundred eighty-one million, one hundred fifty-three thousand, eight hundred ninety-seven".