40447770067 has 4 divisors (see below), whose sum is σ = 40449789400. Its totient is φ = 40445750736.

The previous prime is 40447770059. The next prime is 40447770079. The reversal of 40447770067 is 76007774404.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40447770067 - 2³ = 40447770059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40447769999 and 40447770026.

It is not an unprimeable number, because it can be changed into a prime (40447770037) 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, 979317 + ... + 1019782.

It is an arithmetic number, because the mean of its divisors is an integer number (10112447350).

Almost surely, 2^40447770067 is an apocalyptic number.

40447770067 is a deficient number, since it is larger than the sum of its proper divisors (2019333).

40447770067 is a wasteful number, since it uses less digits than its factorization.

40447770067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019332.

The product of its (nonzero) digits is 921984, while the sum is 46.

The spelling of 40447770067 in words is "forty billion, four hundred forty-seven million, seven hundred seventy thousand, sixty-seven".