40244437056247 has 2 divisors, whose sum is σ = 40244437056248. Its totient is φ = 40244437056246.

The previous prime is 40244437056221. The next prime is 40244437056251. The reversal of 40244437056247 is 74265073444204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40244437056247 - 2³¹ = 40242289572599 is a prime.

It is a super-2 number, since 2×40244437056247² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40244437056194 and 40244437056203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40244437056277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20122218528123 + 20122218528124.

It is an arithmetic number, because the mean of its divisors is an integer number (20122218528124).

Almost surely, 2^{40244437056247} is an apocalyptic number.

40244437056247 is a deficient number, since it is larger than the sum of its proper divisors (1).

40244437056247 is an equidigital number, since it uses as much as digits as its factorization.

40244437056247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18063360, while the sum is 52.

The spelling of 40244437056247 in words is "forty trillion, two hundred forty-four billion, four hundred thirty-seven million, fifty-six thousand, two hundred forty-seven".