40351711806 has 48 divisors (see below), whose sum is σ = 100298525184. Its totient is φ = 11485214352.

The previous prime is 40351711793. The next prime is 40351711901. The reversal of 40351711806 is 60811715304.

40351711806 is a `hidden beast` number, since 403 + 5 + 1 + 71 + 180 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 575706 + ... + 641981.

It is an arithmetic number, because the mean of its divisors is an integer number (2089552608).

Almost surely, 2^40351711806 is an apocalyptic number.

40351711806 is an abundant number, since it is smaller than the sum of its proper divisors (59946813378).

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

40351711806 is a wasteful number, since it uses less digits than its factorization.

40351711806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217965 (or 1217962 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 40351711806 in words is "forty billion, three hundred fifty-one million, seven hundred eleven thousand, eight hundred six".