40261278735181 has 8 divisors (see below), whose sum is σ = 46085810574464. Its totient is φ = 34454977043760.

The previous prime is 40261278735103. The next prime is 40261278735191. The reversal of 40261278735181 is 18153787216204.

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

It is not a de Polignac number, because 40261278735181 - 2¹¹ = 40261278733133 is a prime.

It is a super-2 number, since 2×40261278735181² (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 (40261278735191) 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, 4557532230 + ... + 4557541063.

It is an arithmetic number, because the mean of its divisors is an integer number (5760726321808).

Almost surely, 2^{40261278735181} is an apocalyptic number.

It is an amenable number.

40261278735181 is a deficient number, since it is larger than the sum of its proper divisors (5824531839283).

40261278735181 is an equidigital number, since it uses as much as digits as its factorization.

40261278735181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9115073931.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 40261278735181 in words is "forty trillion, two hundred sixty-one billion, two hundred seventy-eight million, seven hundred thirty-five thousand, one hundred eighty-one".