5087477861 has 4 divisors (see below), whose sum is σ = 5087620800. Its totient is φ = 5087334924.

The previous prime is 5087477839. The next prime is 5087477869. The reversal of 5087477861 is 1687747805.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5087477861 - 2¹⁸ = 5087215717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5087477869) 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, 28970 + ... + 104948.

It is an arithmetic number, because the mean of its divisors is an integer number (1271905200).

Almost surely, 2^5087477861 is an apocalyptic number.

It is an amenable number.

5087477861 is a deficient number, since it is larger than the sum of its proper divisors (142939).

5087477861 is an equidigital number, since it uses as much as digits as its factorization.

5087477861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142938.

The product of its (nonzero) digits is 2634240, while the sum is 53.

The square root of 5087477861 is about 71326.5578939570. The cubic root of 5087477861 is about 1719.8906840792.

The spelling of 5087477861 in words is "five billion, eighty-seven million, four hundred seventy-seven thousand, eight hundred sixty-one".