42626946636 has 36 divisors (see below), whose sum is σ = 109784499552. Its totient is φ = 13940887584.

The previous prime is 42626946631. The next prime is 42626946641. The reversal of 42626946636 is 63664962624.

It is a happy number.

42626946636 is a `hidden beast` number, since 4 + 2 + 626 + 9 + 4 + 6 + 6 + 3 + 6 = 666.

42626946636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42626946631) and next prime (42626946641).

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (42626946631) 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, 11168676 + ... + 11172491.

It is an arithmetic number, because the mean of its divisors is an integer number (3049569432).

Almost surely, 2^42626946636 is an apocalyptic number.

It is an amenable number.

42626946636 is an abundant number, since it is smaller than the sum of its proper divisors (67157552916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42626946636 is a wasteful number, since it uses less digits than its factorization.

42626946636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22341230 (or 22341225 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 54.

The spelling of 42626946636 in words is "forty-two billion, six hundred twenty-six million, nine hundred forty-six thousand, six hundred thirty-six".