40263610264 has 8 divisors (see below), whose sum is σ = 75494269260. Its totient is φ = 20131805128.

The previous prime is 40263610259. The next prime is 40263610297. The reversal of 40263610264 is 46201636204.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×40263610264² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2516475634 + ... + 2516475649.

Almost surely, 2^40263610264 is an apocalyptic number.

It is an amenable number.

40263610264 is a deficient number, since it is larger than the sum of its proper divisors (35230658996).

40263610264 is a wasteful number, since it uses less digits than its factorization.

40263610264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5032951289 (or 5032951285 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 40263610264 in words is "forty billion, two hundred sixty-three million, six hundred ten thousand, two hundred sixty-four".