4815856042 has 12 divisors (see below), whose sum is σ = 7234105410. Its totient is φ = 2404491656.

The previous prime is 4815856021. The next prime is 4815856051. The reversal of 4815856042 is 2406585184.

It can be written as a sum of positive squares in only one way, i.e., 4577740281 + 238115761 = 67659^2 + 15431^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4815856042.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2817084 + ... + 2818792.

Almost surely, 2^4815856042 is an apocalyptic number.

4815856042 is a deficient number, since it is larger than the sum of its proper divisors (2418249368).

4815856042 is an equidigital number, since it uses as much as digits as its factorization.

4815856042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085 (or 2898 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 43.

The square root of 4815856042 is about 69396.3690836920. The cubic root of 4815856042 is about 1688.7207201837.

The spelling of 4815856042 in words is "four billion, eight hundred fifteen million, eight hundred fifty-six thousand, forty-two".