40122536731261 has 8 divisors (see below), whose sum is σ = 40264808311904. Its totient is φ = 39980268642960.

The previous prime is 40122536731253. The next prime is 40122536731307. The reversal of 40122536731261 is 16213763522104.

40122536731261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40122536731261 - 2³ = 40122536731253 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 (40122536731561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23332570 + ... + 24993076.

It is an arithmetic number, because the mean of its divisors is an integer number (5033101038988).

Almost surely, 2^{40122536731261} is an apocalyptic number.

It is an amenable number.

40122536731261 is a deficient number, since it is larger than the sum of its proper divisors (142271580643).

40122536731261 is a wasteful number, since it uses less digits than its factorization.

40122536731261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746171.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 40122536731261 in words is "forty trillion, one hundred twenty-two billion, five hundred thirty-six million, seven hundred thirty-one thousand, two hundred sixty-one".