40142516725 has 12 divisors (see below), whose sum is σ = 49805170276. Its totient is φ = 32095658880.

The previous prime is 40142516723. The next prime is 40142516749. The reversal of 40142516725 is 52761524104.

It can be written as a sum of positive squares in 6 ways, for example, as 3704669956 + 36437846769 = 60866^2 + 190887^2 .

It is not a de Polignac number, because 40142516725 - 2¹ = 40142516723 is a prime.

It is a super-2 number, since 2×40142516725² (a number of 22 digits) contains 22 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 (40142516723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 414162 + ... + 501811.

Almost surely, 2^40142516725 is an apocalyptic number.

It is an amenable number.

40142516725 is a deficient number, since it is larger than the sum of its proper divisors (9662653551).

40142516725 is a wasteful number, since it uses less digits than its factorization.

40142516725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917736 (or 917731 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 40142516725 in words is "forty billion, one hundred forty-two million, five hundred sixteen thousand, seven hundred twenty-five".