4736991945 has 96 divisors (see below), whose sum is σ = 9369727488. Its totient is φ = 2030579712.

The previous prime is 4736991881. The next prime is 4736991953. The reversal of 4736991945 is 5491996374.

It is not a de Polignac number, because 4736991945 - 2⁶ = 4736991881 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4585149 + ... + 4586181.

It is an arithmetic number, because the mean of its divisors is an integer number (97601328).

Almost surely, 2^4736991945 is an apocalyptic number.

It is an amenable number.

4736991945 is a deficient number, since it is larger than the sum of its proper divisors (4632735543).

4736991945 is a wasteful number, since it uses less digits than its factorization.

4736991945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439 (or 1432 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 57.

The square root of 4736991945 is about 68825.8087130111. The cubic root of 4736991945 is about 1679.4518176759.

The spelling of 4736991945 in words is "four billion, seven hundred thirty-six million, nine hundred ninety-one thousand, nine hundred forty-five".