40256433215 has 32 divisors (see below), whose sum is σ = 50648219136. Its totient is φ = 30658573440.

The previous prime is 40256433209. The next prime is 40256433223. The reversal of 40256433215 is 51233465204.

It is not a de Polignac number, because 40256433215 - 2⁴ = 40256433199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31181720 + ... + 31183010.

It is an arithmetic number, because the mean of its divisors is an integer number (1582756848).

Almost surely, 2^40256433215 is an apocalyptic number.

40256433215 is a deficient number, since it is larger than the sum of its proper divisors (10391785921).

40256433215 is a wasteful number, since it uses less digits than its factorization.

40256433215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 40256433215 its reverse (51233465204), we get a palindrome (91489898419).

The spelling of 40256433215 in words is "forty billion, two hundred fifty-six million, four hundred thirty-three thousand, two hundred fifteen".