40401131455 has 16 divisors (see below), whose sum is σ = 50324889600. Its totient is φ = 31103534880.

The previous prime is 40401131453. The next prime is 40401131467. The reversal of 40401131455 is 55413110404.

It is not a de Polignac number, because 40401131455 - 2¹ = 40401131453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40401131453) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 700335 + ... + 755824.

It is an arithmetic number, because the mean of its divisors is an integer number (3145305600).

Almost surely, 2^40401131455 is an apocalyptic number.

40401131455 is a deficient number, since it is larger than the sum of its proper divisors (9923758145).

40401131455 is a wasteful number, since it uses less digits than its factorization.

40401131455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456374.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 40401131455 its reverse (55413110404), we get a palindrome (95814241859).

The spelling of 40401131455 in words is "forty billion, four hundred one million, one hundred thirty-one thousand, four hundred fifty-five".