40766371867 has 4 divisors (see below), whose sum is σ = 43902246640. Its totient is φ = 37630497096.

The previous prime is 40766371787. The next prime is 40766371879. The reversal of 40766371867 is 76817366704.

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-40766371867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40766371897) 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, 1567937367 + ... + 1567937392.

It is an arithmetic number, because the mean of its divisors is an integer number (10975561660).

Almost surely, 2^40766371867 is an apocalyptic number.

40766371867 is a deficient number, since it is larger than the sum of its proper divisors (3135874773).

40766371867 is a wasteful number, since it uses less digits than its factorization.

40766371867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3135874772.

The product of its (nonzero) digits is 7112448, while the sum is 55.

The spelling of 40766371867 in words is "forty billion, seven hundred sixty-six million, three hundred seventy-one thousand, eight hundred sixty-seven".