40158937731 has 16 divisors (see below), whose sum is σ = 58417054848. Its totient is φ = 24337060800.

The previous prime is 40158937729. The next prime is 40158937739. The reversal of 40158937731 is 13773985104.

It is not a de Polignac number, because 40158937731 - 2¹ = 40158937729 is a prime.

It is a super-2 number, since 2×40158937731² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40158937739) 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, 575071 + ... + 641111.

It is an arithmetic number, because the mean of its divisors is an integer number (3651065928).

Almost surely, 2^40158937731 is an apocalyptic number.

40158937731 is a deficient number, since it is larger than the sum of its proper divisors (18258117117).

40158937731 is a wasteful number, since it uses less digits than its factorization.

40158937731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84482.

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 40158937731 in words is "forty billion, one hundred fifty-eight million, nine hundred thirty-seven thousand, seven hundred thirty-one".