40558992469 has 4 divisors (see below), whose sum is σ = 41502224896. Its totient is φ = 39615760044.

The previous prime is 40558992433. The next prime is 40558992491. The reversal of 40558992469 is 96429985504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40558992469 - 2²³ = 40550603861 is a prime.

It is a super-2 number, since 2×40558992469² (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 (40558992269) 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, 471616149 + ... + 471616234.

It is an arithmetic number, because the mean of its divisors is an integer number (10375556224).

Almost surely, 2^40558992469 is an apocalyptic number.

It is an amenable number.

40558992469 is a deficient number, since it is larger than the sum of its proper divisors (943232427).

40558992469 is an equidigital number, since it uses as much as digits as its factorization.

40558992469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943232426.

The product of its (nonzero) digits is 27993600, while the sum is 61.

The spelling of 40558992469 in words is "forty billion, five hundred fifty-eight million, nine hundred ninety-two thousand, four hundred sixty-nine".