40124243551 has 8 divisors (see below), whose sum is σ = 45876776960. Its totient is φ = 34376834808.

The previous prime is 40124243519. The next prime is 40124243573. The reversal of 40124243551 is 15534242104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40124243551 - 2⁵ = 40124243519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40124243501) 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 7 ways as a sum of consecutive naturals, for example, 1264371 + ... + 1295716.

It is an arithmetic number, because the mean of its divisors is an integer number (5734597120).

Almost surely, 2^40124243551 is an apocalyptic number.

40124243551 is a deficient number, since it is larger than the sum of its proper divisors (5752533409).

40124243551 is a wasteful number, since it uses less digits than its factorization.

40124243551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562333.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 40124243551 its reverse (15534242104), we get a palindrome (55658485655).

The spelling of 40124243551 in words is "forty billion, one hundred twenty-four million, two hundred forty-three thousand, five hundred fifty-one".