40861437265278 has 96 divisors (see below), whose sum is σ = 102383694766080. Its totient is φ = 11536621992000.

The previous prime is 40861437265217. The next prime is 40861437265279. The reversal of 40861437265278 is 87256273416804.

40861437265278 is a `hidden beast` number, since 4 + 0 + 8 + 61 + 43 + 7 + 2 + 6 + 527 + 8 = 666.

40861437265278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40861437265279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1070193 + ... + 9103196.

It is an arithmetic number, because the mean of its divisors is an integer number (1066496820480).

Almost surely, 2^{40861437265278} is an apocalyptic number.

40861437265278 is an abundant number, since it is smaller than the sum of its proper divisors (61522257500802).

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

40861437265278 is a wasteful number, since it uses less digits than its factorization.

40861437265278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10173782 (or 10173779 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 63.

The spelling of 40861437265278 in words is "forty trillion, eight hundred sixty-one billion, four hundred thirty-seven million, two hundred sixty-five thousand, two hundred seventy-eight".