4975231787 has 4 divisors (see below), whose sum is σ = 4996957920. Its totient is φ = 4953505656.

The previous prime is 4975231739. The next prime is 4975231823. The reversal of 4975231787 is 7871325794.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7871325794 = 2 ⋅3935662897.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4975231787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4915231787) 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, 10862723 + ... + 10863180.

It is an arithmetic number, because the mean of its divisors is an integer number (1249239480).

Almost surely, 2^4975231787 is an apocalyptic number.

4975231787 is a deficient number, since it is larger than the sum of its proper divisors (21726133).

4975231787 is a wasteful number, since it uses less digits than its factorization.

4975231787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21726132.

The product of its digits is 2963520, while the sum is 53.

The square root of 4975231787 is about 70535.3229736704. The cubic root of 4975231787 is about 1707.1477349750.

The spelling of 4975231787 in words is "four billion, nine hundred seventy-five million, two hundred thirty-one thousand, seven hundred eighty-seven".