40644155127726 has 48 divisors (see below), whose sum is σ = 93597168762240. Its totient is φ = 12710384730000.

The previous prime is 40644155127659. The next prime is 40644155127757. The reversal of 40644155127726 is 62772155144604.

40644155127726 is a `hidden beast` number, since 4 + 0 + 6 + 4 + 41 + 551 + 27 + 7 + 26 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 576870400 + ... + 576940851.

It is an arithmetic number, because the mean of its divisors is an integer number (1949941015880).

Almost surely, 2^{40644155127726} is an apocalyptic number.

40644155127726 is an abundant number, since it is smaller than the sum of its proper divisors (52953013634514).

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

40644155127726 is a wasteful number, since it uses less digits than its factorization.

40644155127726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153811381 (or 1153811378 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 54.

The spelling of 40644155127726 in words is "forty trillion, six hundred forty-four billion, one hundred fifty-five million, one hundred twenty-seven thousand, seven hundred twenty-six".