40122426643636 has 144 divisors (see below), whose sum is σ = 76419635330304. Its totient is φ = 18392140800000.

The previous prime is 40122426643633. The next prime is 40122426643639. The reversal of 40122426643636 is 63634662422104.

It is an interprime number because it is at equal distance from previous prime (40122426643633) and next prime (40122426643639).

It is a super-2 number, since 2×40122426643636² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40122426643636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40122426643633) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10028097636 + ... + 10028101636.

It is an arithmetic number, because the mean of its divisors is an integer number (530691912016).

Almost surely, 2^{40122426643636} is an apocalyptic number.

40122426643636 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

40122426643636 is a deficient number, since it is larger than the sum of its proper divisors (36297208686668).

40122426643636 is a wasteful number, since it uses less digits than its factorization.

40122426643636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5234 (or 5191 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 49.

The spelling of 40122426643636 in words is "forty trillion, one hundred twenty-two billion, four hundred twenty-six million, six hundred forty-three thousand, six hundred thirty-six".