40994100901 has 16 divisors (see below), whose sum is σ = 46083991408. Its totient is φ = 36214387200.

The previous prime is 40994100877. The next prime is 40994100937. The reversal of 40994100901 is 10900149904.

It is a Cunningham number, because it is equal to 202470²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 170302500 + 40823798401 = 13050^2 + 202049^2 .

It is a cyclic number.

It is not a de Polignac number, because 40994100901 - 2⁷ = 40994100773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40994100941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669240 + ... + 727921.

It is an arithmetic number, because the mean of its divisors is an integer number (2880249463).

Almost surely, 2^40994100901 is an apocalyptic number.

It is an amenable number.

40994100901 is a deficient number, since it is larger than the sum of its proper divisors (5089890507).

40994100901 is a wasteful number, since it uses less digits than its factorization.

40994100901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397272.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 40994100901 in words is "forty billion, nine hundred ninety-four million, one hundred thousand, nine hundred one".