40447770069 has 32 divisors (see below), whose sum is σ = 62887415040. Its totient is φ = 22644490752.

The previous prime is 40447770059. The next prime is 40447770079. The reversal of 40447770069 is 96007774404.

It is an interprime number because it is at equal distance from previous prime (40447770059) and next prime (40447770079).

It is not a de Polignac number, because 40447770069 - 2⁵ = 40447770037 is a prime.

It is a super-2 number, since 2×40447770069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40447770049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 763489 + ... + 814745.

It is an arithmetic number, because the mean of its divisors is an integer number (1965231720).

Almost surely, 2^40447770069 is an apocalyptic number.

It is an amenable number.

40447770069 is a deficient number, since it is larger than the sum of its proper divisors (22439644971).

40447770069 is a wasteful number, since it uses less digits than its factorization.

40447770069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52029.

The product of its (nonzero) digits is 1185408, while the sum is 48.

The spelling of 40447770069 in words is "forty billion, four hundred forty-seven million, seven hundred seventy thousand, sixty-nine".