40131242045744 has 40 divisors (see below), whose sum is σ = 80267493658752. Its totient is φ = 19417130933760.

The previous prime is 40131242045743. The next prime is 40131242045771. The reversal of 40131242045744 is 44754024213104.

It is a super-2 number, since 2×40131242045744² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40131242045743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5455262 + ... + 10489154.

Almost surely, 2^{40131242045744} is an apocalyptic number.

It is an amenable number.

40131242045744 is an abundant number, since it is smaller than the sum of its proper divisors (40136251613008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40131242045744 is a wasteful number, since it uses less digits than its factorization.

40131242045744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050005 (or 5049999 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 41.

Adding to 40131242045744 its reverse (44754024213104), we get a palindrome (84885266258848).

The spelling of 40131242045744 in words is "forty trillion, one hundred thirty-one billion, two hundred forty-two million, forty-five thousand, seven hundred forty-four".