40687869911 has 16 divisors (see below), whose sum is σ = 44990349600. Its totient is φ = 36557153280.

The previous prime is 40687869881. The next prime is 40687869917. The reversal of 40687869911 is 11996878604.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40687869911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40687869917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142640 + ... + 318938.

It is an arithmetic number, because the mean of its divisors is an integer number (2811896850).

Almost surely, 2^40687869911 is an apocalyptic number.

40687869911 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40687869911 is a deficient number, since it is larger than the sum of its proper divisors (4302479689).

40687869911 is a wasteful number, since it uses less digits than its factorization.

40687869911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176786.

The product of its (nonzero) digits is 5225472, while the sum is 59.

The spelling of 40687869911 in words is "forty billion, six hundred eighty-seven million, eight hundred sixty-nine thousand, nine hundred eleven".