40857147147 has 16 divisors (see below), whose sum is σ = 56444071680. Its totient is φ = 26257140000.

The previous prime is 40857147139. The next prime is 40857147181. The reversal of 40857147147 is 74174175804.

It is not a de Polignac number, because 40857147147 - 2³ = 40857147139 is a prime.

It is a super-2 number, since 2×40857147147² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40857147096 and 40857147105.

It is not an unprimeable number, because it can be changed into a prime (40857147187) 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, 317229 + ... + 427022.

It is an arithmetic number, because the mean of its divisors is an integer number (3527754480).

Almost surely, 2^40857147147 is an apocalyptic number.

40857147147 is a deficient number, since it is larger than the sum of its proper divisors (15586924533).

40857147147 is a wasteful number, since it uses less digits than its factorization.

40857147147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744914.

The product of its (nonzero) digits is 878080, while the sum is 48.

The spelling of 40857147147 in words is "forty billion, eight hundred fifty-seven million, one hundred forty-seven thousand, one hundred forty-seven".