4781157777 has 24 divisors (see below), whose sum is σ = 7930472160. Its totient is φ = 2745161280.

The previous prime is 4781157769. The next prime is 4781157779. The reversal of 4781157777 is 7777511874.

It is not a de Polignac number, because 4781157777 - 2³ = 4781157769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4781157779) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1269028 + ... + 1272789.

It is an arithmetic number, because the mean of its divisors is an integer number (330436340).

Almost surely, 2^4781157777 is an apocalyptic number.

It is an amenable number.

4781157777 is a deficient number, since it is larger than the sum of its proper divisors (3149314383).

4781157777 is a wasteful number, since it uses less digits than its factorization.

4781157777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541853 (or 2541850 counting only the distinct ones).

The product of its digits is 2689120, while the sum is 54.

The square root of 4781157777 is about 69145.9165605605. The cubic root of 4781157777 is about 1684.6551935880.

The spelling of 4781157777 in words is "four billion, seven hundred eighty-one million, one hundred fifty-seven thousand, seven hundred seventy-seven".