40784866616858 has 64 divisors (see below), whose sum is σ = 75444668006400. Its totient is φ = 16102646802432.

The previous prime is 40784866616827. The next prime is 40784866616887. The reversal of 40784866616858 is 85861666848704.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 372181991 + ... + 372291557.

It is an arithmetic number, because the mean of its divisors is an integer number (1178822937600).

Almost surely, 2^{40784866616858} is an apocalyptic number.

40784866616858 is a deficient number, since it is larger than the sum of its proper divisors (34659801389542).

40784866616858 is a wasteful number, since it uses less digits than its factorization.

40784866616858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113631.

The product of its (nonzero) digits is 2972712960, while the sum is 77.

The spelling of 40784866616858 in words is "forty trillion, seven hundred eighty-four billion, eight hundred sixty-six million, six hundred sixteen thousand, eight hundred fifty-eight".