5011369861 has 4 divisors (see below), whose sum is σ = 5012237772. Its totient is φ = 5010501952.

The previous prime is 5011369849. The next prime is 5011369967. The reversal of 5011369861 is 1689631105.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1169229636 + 3842140225 = 34194^2 + 61985^2 .

It is a cyclic number.

It is not a de Polignac number, because 5011369861 - 2⁵ = 5011369829 is a prime.

It is a super-2 number, since 2×5011369861² = 50227655767478318642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5011369841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425236 + ... + 436861.

It is an arithmetic number, because the mean of its divisors is an integer number (1253059443).

Almost surely, 2^5011369861 is an apocalyptic number.

It is an amenable number.

5011369861 is a deficient number, since it is larger than the sum of its proper divisors (867911).

5011369861 is an equidigital number, since it uses as much as digits as its factorization.

5011369861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867910.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 5011369861 is about 70791.0295235208. The cubic root of 5011369861 is about 1711.2711113712.

The spelling of 5011369861 in words is "five billion, eleven million, three hundred sixty-nine thousand, eight hundred sixty-one".