5261009994 has 16 divisors (see below), whose sum is σ = 11691133440. Its totient is φ = 1753669980.

The previous prime is 5261009993. The next prime is 5261010019. The reversal of 5261009994 is 4999001625.

It is not an unprimeable number, because it can be changed into a prime (5261009993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48713002 + ... + 48713109.

It is an arithmetic number, because the mean of its divisors is an integer number (730695840).

Almost surely, 2^5261009994 is an apocalyptic number.

5261009994 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

5261009994 is an abundant number, since it is smaller than the sum of its proper divisors (6430123446).

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

5261009994 is a wasteful number, since it uses less digits than its factorization.

5261009994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97426122 (or 97426116 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 5261009994 is about 72532.8201161378. The cubic root of 5261009994 is about 1739.2274275344.

The spelling of 5261009994 in words is "five billion, two hundred sixty-one million, nine thousand, nine hundred ninety-four".