40447743744 has 36 divisors (see below), whose sum is σ = 107649986696. Its totient is φ = 13482580992.

The previous prime is 40447743733. The next prime is 40447743797. The reversal of 40447743744 is 44734774404.

40447743744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40447743744² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 40447743693 and 40447743702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26332399 + ... + 26333934.

Almost surely, 2^40447743744 is an apocalyptic number.

It is an amenable number.

40447743744 is an abundant number, since it is smaller than the sum of its proper divisors (67202242952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40447743744 is an equidigital number, since it uses as much as digits as its factorization.

40447743744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52666352 (or 52666338 counting only the distinct ones).

The product of its (nonzero) digits is 4214784, while the sum is 48.

The spelling of 40447743744 in words is "forty billion, four hundred forty-seven million, seven hundred forty-three thousand, seven hundred forty-four".