40234340540646 has 24 divisors (see below), whose sum is σ = 99627890862864. Its totient is φ = 11495525868720.

The previous prime is 40234340540593. The next prime is 40234340540657. The reversal of 40234340540646 is 64604504343204.

40234340540646 is a `hidden beast` number, since 4 + 0 + 2 + 3 + 4 + 3 + 40 + 540 + 64 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159660081385 + ... + 159660081636.

It is an arithmetic number, because the mean of its divisors is an integer number (4151162119286).

Almost surely, 2^{40234340540646} is an apocalyptic number.

40234340540646 is an abundant number, since it is smaller than the sum of its proper divisors (59393550322218).

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

40234340540646 is a wasteful number, since it uses less digits than its factorization.

40234340540646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319320163036 (or 319320163033 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 45.

The spelling of 40234340540646 in words is "forty trillion, two hundred thirty-four billion, three hundred forty million, five hundred forty thousand, six hundred forty-six".