8261615050 has 24 divisors (see below), whose sum is σ = 16548651756. Its totient is φ = 3050442240.

The previous prime is 8261615027. The next prime is 8261615059. The reversal of 8261615050 is 505161628.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 430604001 + 7831011049 = 20751^2 + 88493^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8261614997 and 8261615015.

It is not an unprimeable number, because it can be changed into a prime (8261615059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6354439 + ... + 6355738.

Almost surely, 2^8261615050 is an apocalyptic number.

8261615050 is an abundant number, since it is smaller than the sum of its proper divisors (8287036706).

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

8261615050 is a wasteful number, since it uses less digits than its factorization.

8261615050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12710202 (or 12710197 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 8261615050 is about 90893.4268800555. The cubic root of 8261615050 is about 2021.5678324077.

Adding to 8261615050 its reverse (505161628), we get a palindrome (8766776678).

The spelling of 8261615050 in words is "eight billion, two hundred sixty-one million, six hundred fifteen thousand, fifty".