4000718607550 has 24 divisors (see below), whose sum is σ = 8504384697936. Its totient is φ = 1371674951040.

The previous prime is 4000718607533. The next prime is 4000718607559. The reversal of 4000718607550 is 557068170004.

It is a junction number, because it is equal to n+sod(n) for n = 4000718607497 and 4000718607506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000718607559) 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, 5715311947 + ... + 5715312646.

It is an arithmetic number, because the mean of its divisors is an integer number (354349362414).

Almost surely, 2^{4000718607550} is an apocalyptic number.

4000718607550 is an abundant number, since it is smaller than the sum of its proper divisors (4503666090386).

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

4000718607550 is a wasteful number, since it uses less digits than its factorization.

4000718607550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11430624612 (or 11430624607 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 4000718607550 in words is "four trillion, seven hundred eighteen million, six hundred seven thousand, five hundred fifty".