40146255823 has 4 divisors (see below), whose sum is σ = 40147754688. Its totient is φ = 40144756960.

The previous prime is 40146255761. The next prime is 40146255839. The reversal of 40146255823 is 32855264104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40146255823 - 2³³ = 31556321231 is a prime.

It is a super-2 number, since 2×40146255823² (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 (40146255223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708511 + ... + 763072.

It is an arithmetic number, because the mean of its divisors is an integer number (10036938672).

Almost surely, 2^40146255823 is an apocalyptic number.

40146255823 is a deficient number, since it is larger than the sum of its proper divisors (1498865).

40146255823 is a wasteful number, since it uses less digits than its factorization.

40146255823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498864.

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 40146255823 in words is "forty billion, one hundred forty-six million, two hundred fifty-five thousand, eight hundred twenty-three".