40533020549 has 12 divisors (see below), whose sum is σ = 49632271200. Its totient is φ = 32914030968.

The previous prime is 40533020531. The next prime is 40533020579. The reversal of 40533020549 is 94502033504.

It is not a de Polignac number, because 40533020549 - 2¹⁶ = 40532955013 is a prime.

It is a super-2 number, since 2×40533020549² (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 (40533020579) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21767609 + ... + 21769470.

It is an arithmetic number, because the mean of its divisors is an integer number (4136022600).

Almost surely, 2^40533020549 is an apocalyptic number.

40533020549 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

40533020549 is a deficient number, since it is larger than the sum of its proper divisors (9099250651).

40533020549 is a wasteful number, since it uses less digits than its factorization.

40533020549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43537112 (or 43537105 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 40533020549 in words is "forty billion, five hundred thirty-three million, twenty thousand, five hundred forty-nine".