10183478861 has 4 divisors (see below), whose sum is σ = 10400148672. Its totient is φ = 9966809052.

The previous prime is 10183478843. The next prime is 10183478867. The reversal of 10183478861 is 16887438101.

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.

It is a cyclic number.

It is not a de Polignac number, because 10183478861 - 2¹⁸ = 10183216717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 216669763 = 10183478861 / (1 + 0 + 1 + 8 + 3 + 4 + 7 + 8 + 8 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10183478867) 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, 108334835 + ... + 108334928.

It is an arithmetic number, because the mean of its divisors is an integer number (2600037168).

Almost surely, 2^10183478861 is an apocalyptic number.

It is an amenable number.

10183478861 is a deficient number, since it is larger than the sum of its proper divisors (216669811).

10183478861 is an equidigital number, since it uses as much as digits as its factorization.

10183478861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216669810.

The product of its (nonzero) digits is 258048, while the sum is 47.

The spelling of 10183478861 in words is "ten billion, one hundred eighty-three million, four hundred seventy-eight thousand, eight hundred sixty-one".