40158471852 has 18 divisors (see below), whose sum is σ = 101511692828. Its totient is φ = 13386157272.

The previous prime is 40158471841. The next prime is 40158471863. The reversal of 40158471852 is 25817485104.

40158471852 is a `hidden beast` number, since 4 + 0 + 1 + 584 + 7 + 18 + 52 = 666.

It is an interprime number because it is at equal distance from previous prime (40158471841) and next prime (40158471863).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×40158471852² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40158471798 and 40158471807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 557756518 + ... + 557756589.

Almost surely, 2^40158471852 is an apocalyptic number.

It is an amenable number.

40158471852 is an abundant number, since it is smaller than the sum of its proper divisors (61353220976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40158471852 is a wasteful number, since it uses less digits than its factorization.

40158471852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115513117 (or 1115513112 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The spelling of 40158471852 in words is "forty billion, one hundred fifty-eight million, four hundred seventy-one thousand, eight hundred fifty-two".