2515818842 has 16 divisors (see below), whose sum is σ = 3980952960. Its totient is φ = 1189121472.

The previous prime is 2515818841. The next prime is 2515818853. The reversal of 2515818842 is 2488185152.

It is a junction number, because it is equal to n+sod(n) for n = 2515818793 and 2515818802.

It is not an unprimeable number, because it can be changed into a prime (2515818841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53903 + ... + 89090.

It is an arithmetic number, because the mean of its divisors is an integer number (248809560).

Almost surely, 2^2515818842 is an apocalyptic number.

2515818842 is a deficient number, since it is larger than the sum of its proper divisors (1465134118).

2515818842 is a wasteful number, since it uses less digits than its factorization.

2515818842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143477.

The product of its digits is 204800, while the sum is 44.

The square root of 2515818842 is about 50157.9389728087. The cubic root of 2515818842 is about 1360.0653879317.

The spelling of 2515818842 in words is "two billion, five hundred fifteen million, eight hundred eighteen thousand, eight hundred forty-two".