40065472047 has 4 divisors (see below), whose sum is σ = 53420629400. Its totient is φ = 26710314696.

The previous prime is 40065472043. The next prime is 40065472061. The reversal of 40065472047 is 74027456004.

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

It is not a de Polignac number, because 40065472047 - 2² = 40065472043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40065471996 and 40065472014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40065472043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6677578672 + ... + 6677578677.

It is an arithmetic number, because the mean of its divisors is an integer number (13355157350).

Almost surely, 2^40065472047 is an apocalyptic number.

40065472047 is a deficient number, since it is larger than the sum of its proper divisors (13355157353).

40065472047 is a wasteful number, since it uses less digits than its factorization.

40065472047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13355157352.

The product of its (nonzero) digits is 188160, while the sum is 39.

The spelling of 40065472047 in words is "forty billion, sixty-five million, four hundred seventy-two thousand, forty-seven".