40985658469 has 4 divisors (see below), whose sum is σ = 46840752544. Its totient is φ = 35130564396.

The previous prime is 40985658451. The next prime is 40985658491. The reversal of 40985658469 is 96485658904.

40985658469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40985658469 - 2³¹ = 38838174821 is a prime.

It is a super-2 number, since 2×40985658469² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40985658469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40985658169) 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, 2927547027 + ... + 2927547040.

It is an arithmetic number, because the mean of its divisors is an integer number (11710188136).

Almost surely, 2^40985658469 is an apocalyptic number.

It is an amenable number.

40985658469 is a deficient number, since it is larger than the sum of its proper divisors (5855094075).

40985658469 is an equidigital number, since it uses as much as digits as its factorization.

40985658469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5855094074.

The product of its (nonzero) digits is 74649600, while the sum is 64.

The spelling of 40985658469 in words is "forty billion, nine hundred eighty-five million, six hundred fifty-eight thousand, four hundred sixty-nine".