40208888686 has 16 divisors (see below), whose sum is σ = 61248401424. Its totient is φ = 19794409024.

The previous prime is 40208888669. The next prime is 40208888701. The reversal of 40208888686 is 68688880204.

It is a self number, because there is not a number n which added to its sum of digits gives 40208888686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364711 + ... + 461986.

It is an arithmetic number, because the mean of its divisors is an integer number (3828025089).

Almost surely, 2^40208888686 is an apocalyptic number.

40208888686 is a deficient number, since it is larger than the sum of its proper divisors (21039512738).

40208888686 is a wasteful number, since it uses less digits than its factorization.

40208888686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827075.

The product of its (nonzero) digits is 9437184, while the sum is 58.

The spelling of 40208888686 in words is "forty billion, two hundred eight million, eight hundred eighty-eight thousand, six hundred eighty-six".