4877779842 has 48 divisors (see below), whose sum is σ = 12050995320. Its totient is φ = 1412568576.

The previous prime is 4877779813. The next prime is 4877779849. The reversal of 4877779842 is 2489777784.

4877779842 is a `hidden beast` number, since 487 + 7 + 7 + 79 + 84 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2509108281 + 2368671561 = 50091^2 + 48669^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4877779842.

It is not an unprimeable number, because it can be changed into a prime (4877779849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 609117 + ... + 617072.

Almost surely, 2^4877779842 is an apocalyptic number.

4877779842 is an abundant number, since it is smaller than the sum of its proper divisors (7173215478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4877779842 is a wasteful number, since it uses less digits than its factorization.

4877779842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226227 (or 1226224 counting only the distinct ones).

The product of its digits is 44255232, while the sum is 63.

The square root of 4877779842 is about 69841.1042438477. The cubic root of 4877779842 is about 1695.9279519593.

The spelling of 4877779842 in words is "four billion, eight hundred seventy-seven million, seven hundred seventy-nine thousand, eight hundred forty-two".