40011542947693 has 12 divisors (see below), whose sum is σ = 40898955937500. Its totient is φ = 39143000175872.

The previous prime is 40011542947661. The next prime is 40011542947697. The reversal of 40011542947693 is 39674924511004.

It can be written as a sum of positive squares in 2 ways, for example, as 25741447401609 + 14270095546084 = 5073603^2 + 3777578^2 .

It is not a de Polignac number, because 40011542947693 - 2⁵ = 40011542947661 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 (40011542947697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1036683 + ... + 9005431.

It is an arithmetic number, because the mean of its divisors is an integer number (3408246328125).

Almost surely, 2^{40011542947693} is an apocalyptic number.

It is an amenable number.

40011542947693 is a deficient number, since it is larger than the sum of its proper divisors (887412989807).

40011542947693 is an equidigital number, since it uses as much as digits as its factorization.

40011542947693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7971116 (or 7971069 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 40011542947693 in words is "forty trillion, eleven billion, five hundred forty-two million, nine hundred forty-seven thousand, six hundred ninety-three".