10144838861 has 4 divisors (see below), whose sum is σ = 10148319612. Its totient is φ = 10141358112.

The previous prime is 10144838857. The next prime is 10144838887. The reversal of 10144838861 is 16883844101.

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 8948024836 + 1196814025 = 94594^2 + 34595^2 .

It is a cyclic number.

It is not a de Polignac number, because 10144838861 - 2² = 10144838857 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10144838831) 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, 1736000 + ... + 1741833.

It is an arithmetic number, because the mean of its divisors is an integer number (2537079903).

Almost surely, 2^10144838861 is an apocalyptic number.

It is an amenable number.

10144838861 is a deficient number, since it is larger than the sum of its proper divisors (3480751).

10144838861 is an equidigital number, since it uses as much as digits as its factorization.

10144838861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480750.

The product of its (nonzero) digits is 147456, while the sum is 44.

The spelling of 10144838861 in words is "ten billion, one hundred forty-four million, eight hundred thirty-eight thousand, eight hundred sixty-one".