40269851349 has 24 divisors (see below), whose sum is σ = 67263930720. Its totient is φ = 21241239264.

The previous prime is 40269851263. The next prime is 40269851371. The reversal of 40269851349 is 94315896204.

It is not a de Polignac number, because 40269851349 - 2⁷ = 40269851221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40269801349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10534419 + ... + 10538240.

It is an arithmetic number, because the mean of its divisors is an integer number (2802663780).

Almost surely, 2^40269851349 is an apocalyptic number.

40269851349 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

40269851349 is a deficient number, since it is larger than the sum of its proper divisors (26994079371).

40269851349 is a wasteful number, since it uses less digits than its factorization.

40269851349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21072689 (or 21072682 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 40269851349 in words is "forty billion, two hundred sixty-nine million, eight hundred fifty-one thousand, three hundred forty-nine".