40239139471 has 16 divisors (see below), whose sum is σ = 40839140160. Its totient is φ = 39643695360.

The previous prime is 40239139459. The next prime is 40239139483. The reversal of 40239139471 is 17493193204.

40239139471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40239139459) and next prime (40239139483).

It is a cyclic number.

It is not a de Polignac number, because 40239139471 - 2¹¹ = 40239137423 is a prime.

It is a super-3 number, since 3×40239139471³ (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 (40239139411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34071501 + ... + 34072681.

It is an arithmetic number, because the mean of its divisors is an integer number (2552446260).

Almost surely, 2^40239139471 is an apocalyptic number.

40239139471 is a deficient number, since it is larger than the sum of its proper divisors (600000689).

40239139471 is a wasteful number, since it uses less digits than its factorization.

40239139471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 40239139471 in words is "forty billion, two hundred thirty-nine million, one hundred thirty-nine thousand, four hundred seventy-one".