40007073733 has 6 divisors (see below), whose sum is σ = 43974717542. Its totient is φ = 36370066920.

The previous prime is 40007073649. The next prime is 40007073737. The reversal of 40007073733 is 33737070004.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23943539169 + 16063534564 = 154737^2 + 126742^2 .

It is a de Polignac number, because none of the positive numbers 2^k-40007073733 is a prime.

It is a super-3 number, since 3×40007073733³ (a number of 33 digits) contains 333 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 (40007073737) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 165318366 + ... + 165318607.

Almost surely, 2^40007073733 is an apocalyptic number.

It is an amenable number.

40007073733 is a deficient number, since it is larger than the sum of its proper divisors (3967643809).

40007073733 is a wasteful number, since it uses less digits than its factorization.

40007073733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330636995 (or 330636984 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 34.

The spelling of 40007073733 in words is "forty billion, seven million, seventy-three thousand, seven hundred thirty-three".