40627794469 has 4 divisors (see below), whose sum is σ = 40629016044. Its totient is φ = 40626572896.

The previous prime is 40627794457. The next prime is 40627794503. The reversal of 40627794469 is 96449772604.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32458346244 + 8169448225 = 180162^2 + 90385^2 .

It is a cyclic number.

It is not a de Polignac number, because 40627794469 - 2¹⁹ = 40627270181 is a prime.

It is a super-2 number, since 2×40627794469² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40627794409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559462 + ... + 627895.

It is an arithmetic number, because the mean of its divisors is an integer number (10157254011).

Almost surely, 2^40627794469 is an apocalyptic number.

It is an amenable number.

40627794469 is a deficient number, since it is larger than the sum of its proper divisors (1221575).

40627794469 is a wasteful number, since it uses less digits than its factorization.

40627794469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221574.

The product of its (nonzero) digits is 18289152, while the sum is 58.

The spelling of 40627794469 in words is "forty billion, six hundred twenty-seven million, seven hundred ninety-four thousand, four hundred sixty-nine".