40431026415 has 64 divisors (see below), whose sum is σ = 71393664384. Its totient is φ = 19415205888.

The previous prime is 40431026393. The next prime is 40431026423. The reversal of 40431026415 is 51462013404.

It is not a de Polignac number, because 40431026415 - 2⁶ = 40431026351 is a prime.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 1776649 + ... + 1799261.

It is an arithmetic number, because the mean of its divisors is an integer number (1115526006).

Almost surely, 2^40431026415 is an apocalyptic number.

40431026415 is a deficient number, since it is larger than the sum of its proper divisors (30962637969).

40431026415 is a wasteful number, since it uses less digits than its factorization.

40431026415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22860.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 40431026415 its reverse (51462013404), we get a palindrome (91893039819).

The spelling of 40431026415 in words is "forty billion, four hundred thirty-one million, twenty-six thousand, four hundred fifteen".