40244643601 has 8 divisors (see below), whose sum is σ = 40664761704. Its totient is φ = 39824632320.

The previous prime is 40244643583. The next prime is 40244643619. The reversal of 40244643601 is 10634644204.

It is an interprime number because it is at equal distance from previous prime (40244643583) and next prime (40244643619).

It can be written as a sum of positive squares in 4 ways, for example, as 3380259600 + 36864384001 = 58140^2 + 192001^2 .

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 40244643601 - 2¹¹ = 40244641553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40244643631) 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, 895791 + ... + 939643.

It is an arithmetic number, because the mean of its divisors is an integer number (5083095213).

Almost surely, 2^40244643601 is an apocalyptic number.

It is an amenable number.

40244643601 is a deficient number, since it is larger than the sum of its proper divisors (420118103).

40244643601 is an equidigital number, since it uses as much as digits as its factorization.

40244643601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53411.

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 40244643601 in words is "forty billion, two hundred forty-four million, six hundred forty-three thousand, six hundred one".