2115050004 has 18 divisors (see below), whose sum is σ = 5346376490. Its totient is φ = 705016656.

The previous prime is 2115049991. The next prime is 2115050009. The reversal of 2115050004 is 4000505112.

It can be written as a sum of positive squares in only one way, i.e., 2038522500 + 76527504 = 45150^2 + 8748^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115050009) 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 5 ways as a sum of consecutive naturals, for example, 29375659 + ... + 29375730.

Almost surely, 2^2115050004 is an apocalyptic number.

It is an amenable number.

2115050004 is an abundant number, since it is smaller than the sum of its proper divisors (3231326486).

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

2115050004 is a wasteful number, since it uses less digits than its factorization.

2115050004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58751399 (or 58751394 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 2115050004 is about 45989.6727972705. The cubic root of 2115050004 is about 1283.6310480971.

Adding to 2115050004 its reverse (4000505112), we get a palindrome (6115555116).

The spelling of 2115050004 in words is "two billion, one hundred fifteen million, fifty thousand, four".