40349357968896 has 120 divisors (see below), whose sum is σ = 118360012354584. Its totient is φ = 13229297602560.

The previous prime is 40349357968891. The next prime is 40349357968897. The reversal of 40349357968896 is 69886975394304.

40349357968896 is a `hidden beast` number, since 4 + 0 + 34 + 9 + 3 + 579 + 6 + 8 + 8 + 9 + 6 = 666.

It is a super-2 number, since 2×40349357968896² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40349357968891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71492446 + ... + 72054621.

Almost surely, 2^{40349357968896} is an apocalyptic number.

It is an amenable number.

40349357968896 is an abundant number, since it is smaller than the sum of its proper divisors (78010654385688).

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

40349357968896 is a wasteful number, since it uses less digits than its factorization.

40349357968896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143547152 (or 143547133 counting only the distinct ones).

The product of its (nonzero) digits is 8465264640, while the sum is 81.

The spelling of 40349357968896 in words is "forty trillion, three hundred forty-nine billion, three hundred fifty-seven million, nine hundred sixty-eight thousand, eight hundred ninety-six".