40823138525 has 48 divisors (see below), whose sum is σ = 55410078528. Its totient is φ = 29652480000.

The previous prime is 40823138509. The next prime is 40823138539. The reversal of 40823138525 is 52583132804.

It is not a de Polignac number, because 40823138525 - 2⁴ = 40823138509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 25497725 + ... + 25499325.

It is an arithmetic number, because the mean of its divisors is an integer number (1154376636).

Almost surely, 2^40823138525 is an apocalyptic number.

It is an amenable number.

40823138525 is a deficient number, since it is larger than the sum of its proper divisors (14586940003).

40823138525 is a wasteful number, since it uses less digits than its factorization.

40823138525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862 (or 2857 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 40823138525 in words is "forty billion, eight hundred twenty-three million, one hundred thirty-eight thousand, five hundred twenty-five".