43340820440787 has 64 divisors (see below), whose sum is σ = 67727294400000. Its totient is φ = 27316792387584.

The previous prime is 43340820440761. The next prime is 43340820440909. The reversal of 43340820440787 is 78704402804334.

43340820440787 is a `hidden beast` number, since 4 + 3 + 3 + 40 + 82 + 0 + 440 + 7 + 87 = 666.

It is not a de Polignac number, because 43340820440787 - 2⁸ = 43340820440531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43340820440737) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 616924839 + ... + 616995087.

It is an arithmetic number, because the mean of its divisors is an integer number (1058238975000).

Almost surely, 2^{43340820440787} is an apocalyptic number.

43340820440787 is a deficient number, since it is larger than the sum of its proper divisors (24386473959213).

43340820440787 is a wasteful number, since it uses less digits than its factorization.

43340820440787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72737 (or 72731 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 54.

The spelling of 43340820440787 in words is "forty-three trillion, three hundred forty billion, eight hundred twenty million, four hundred forty thousand, seven hundred eighty-seven".