40163425610638 has 24 divisors (see below), whose sum is σ = 66229545468240. Its totient is φ = 18253433167200.

The previous prime is 40163425610591. The next prime is 40163425610639. The reversal of 40163425610638 is 83601652436104.

It is a super-2 number, since 2×40163425610638² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40163425610591 and 40163425610600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40163425610639) 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, 10474618 + ... + 13785661.

It is an arithmetic number, because the mean of its divisors is an integer number (2759564394510).

Almost surely, 2^{40163425610638} is an apocalyptic number.

40163425610638 is a deficient number, since it is larger than the sum of its proper divisors (26066119857602).

40163425610638 is a wasteful number, since it uses less digits than its factorization.

40163425610638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24267144 (or 24267133 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 40163425610638 in words is "forty trillion, one hundred sixty-three billion, four hundred twenty-five million, six hundred ten thousand, six hundred thirty-eight".