40400404000047 has 64 divisors (see below), whose sum is σ = 73748554306560. Its totient is φ = 21285803210112.

The previous prime is 40400404000039. The next prime is 40400404000049. The reversal of 40400404000047 is 74000040400404.

It is a happy number.

It is not a de Polignac number, because 40400404000047 - 2³ = 40400404000039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40400404000049) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7219773 + ... + 11529350.

It is an arithmetic number, because the mean of its divisors is an integer number (1152321161040).

Almost surely, 2^{40400404000047} is an apocalyptic number.

40400404000047 is a deficient number, since it is larger than the sum of its proper divisors (33348150306513).

40400404000047 is a wasteful number, since it uses less digits than its factorization.

40400404000047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18750029 (or 18750023 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

The spelling of 40400404000047 in words is "forty trillion, four hundred billion, four hundred four million, forty-seven", and thus it is an aban number.