40261278484839 has 16 divisors (see below), whose sum is σ = 54934143264000. Its totient is φ = 26214724534656.

The previous prime is 40261278484811. The next prime is 40261278484859. The reversal of 40261278484839 is 93848487216204.

It is not a de Polignac number, because 40261278484839 - 2⁵ = 40261278484807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40261278484839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40261278484859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9672459 + ... + 13193900.

It is an arithmetic number, because the mean of its divisors is an integer number (3433383954000).

Almost surely, 2^{40261278484839} is an apocalyptic number.

40261278484839 is a deficient number, since it is larger than the sum of its proper divisors (14672864779161).

40261278484839 is a wasteful number, since it uses less digits than its factorization.

40261278484839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22880054.

The product of its (nonzero) digits is 148635648, while the sum is 66.

The spelling of 40261278484839 in words is "forty trillion, two hundred sixty-one billion, two hundred seventy-eight million, four hundred eighty-four thousand, eight hundred thirty-nine".