40144554451431 has 10 divisors (see below), whose sum is σ = 59969025785592. Its totient is φ = 26763036300900.

The previous prime is 40144554451387. The next prime is 40144554451471. The reversal of 40144554451431 is 13415445544104.

40144554451431 is a `hidden beast` number, since 4 + 0 + 1 + 4 + 4 + 554 + 4 + 51 + 43 + 1 = 666.

It is not a de Polignac number, because 40144554451431 - 2⁷ = 40144554451303 is a prime.

It is a super-2 number, since 2×40144554451431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144554451471) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 247805891595 + ... + 247805891756.

Almost surely, 2^{40144554451431} is an apocalyptic number.

40144554451431 is a deficient number, since it is larger than the sum of its proper divisors (19824471334161).

40144554451431 is an equidigital number, since it uses as much as digits as its factorization.

40144554451431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495611783363 (or 495611783354 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 45.

Adding to 40144554451431 its reverse (13415445544104), we get a palindrome (53559999995535).

The spelling of 40144554451431 in words is "forty trillion, one hundred forty-four billion, five hundred fifty-four million, four hundred fifty-one thousand, four hundred thirty-one".