41400043687 has 4 divisors (see below), whose sum is σ = 41489849016. Its totient is φ = 41310238360.

The previous prime is 41400043667. The next prime is 41400043691. The reversal of 41400043687 is 78634000414.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41400043687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41400043627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44901973 + ... + 44902894.

It is an arithmetic number, because the mean of its divisors is an integer number (10372462254).

Almost surely, 2^41400043687 is an apocalyptic number.

41400043687 is a deficient number, since it is larger than the sum of its proper divisors (89805329).

41400043687 is an equidigital number, since it uses as much as digits as its factorization.

41400043687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89805328.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 41400043687 in words is "forty-one billion, four hundred million, forty-three thousand, six hundred eighty-seven".