4997648761 has 8 divisors (see below), whose sum is σ = 5716950080. Its totient is φ = 4279685328.

The previous prime is 4997648759. The next prime is 4997648779. The reversal of 4997648761 is 1678467994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4997648761 - 2¹ = 4997648759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4997648761.

It is not an unprimeable number, because it can be changed into a prime (4997648741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326451 + ... + 341416.

It is an arithmetic number, because the mean of its divisors is an integer number (714618760).

Almost surely, 2^4997648761 is an apocalyptic number.

It is an amenable number.

4997648761 is a deficient number, since it is larger than the sum of its proper divisors (719301319).

4997648761 is a wasteful number, since it uses less digits than its factorization.

4997648761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668943.

The product of its digits is 18289152, while the sum is 61.

The square root of 4997648761 is about 70694.0503932262. The cubic root of 4997648761 is about 1709.7078671754.

The spelling of 4997648761 in words is "four billion, nine hundred ninety-seven million, six hundred forty-eight thousand, seven hundred sixty-one".