44390053861 has 8 divisors (see below), whose sum is σ = 45233767800. Its totient is φ = 43550082240.

The previous prime is 44390053849. The next prime is 44390053871. The reversal of 44390053861 is 16835009344.

It can be written as a sum of positive squares in 4 ways, for example, as 1561751361 + 42828302500 = 39519^2 + 206950^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44390053861 - 2²³ = 44381665253 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 (44390053801) 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, 911626 + ... + 959083.

It is an arithmetic number, because the mean of its divisors is an integer number (5654220975).

Almost surely, 2^44390053861 is an apocalyptic number.

It is an amenable number.

44390053861 is a deficient number, since it is larger than the sum of its proper divisors (843713939).

44390053861 is a wasteful number, since it uses less digits than its factorization.

44390053861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871159.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 44390053861 in words is "forty-four billion, three hundred ninety million, fifty-three thousand, eight hundred sixty-one".