40140778730381 has 16 divisors (see below), whose sum is σ = 48888253845504. Its totient is φ = 32210229735024.

The previous prime is 40140778730317. The next prime is 40140778730407. The reversal of 40140778730381 is 18303787704104.

It is not a de Polignac number, because 40140778730381 - 2⁶ = 40140778730317 is a prime.

It is a super-2 number, since 2×40140778730381² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40140778730581) 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, 2652349955 + ... + 2652365088.

It is an arithmetic number, because the mean of its divisors is an integer number (3055515865344).

Almost surely, 2^{40140778730381} is an apocalyptic number.

It is an amenable number.

40140778730381 is a deficient number, since it is larger than the sum of its proper divisors (8747475115123).

40140778730381 is a wasteful number, since it uses less digits than its factorization.

40140778730381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5304715120.

The product of its (nonzero) digits is 3161088, while the sum is 53.

The spelling of 40140778730381 in words is "forty trillion, one hundred forty billion, seven hundred seventy-eight million, seven hundred thirty thousand, three hundred eighty-one".