40534319907648 has 84 divisors (see below), whose sum is σ = 132782067805920. Its totient is φ = 11581234258176.

The previous prime is 40534319907617. The next prime is 40534319907733. The reversal of 40534319907648 is 84670991343504.

40534319907648 is a `hidden beast` number, since 4 + 0 + 5 + 3 + 431 + 9 + 90 + 76 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 5026573338 + ... + 5026581401.

Almost surely, 2^{40534319907648} is an apocalyptic number.

40534319907648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40534319907648 is an abundant number, since it is smaller than the sum of its proper divisors (92247747898272).

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

40534319907648 is a wasteful number, since it uses less digits than its factorization.

40534319907648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10053154764 (or 10053154751 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 63.

The spelling of 40534319907648 in words is "forty trillion, five hundred thirty-four billion, three hundred nineteen million, nine hundred seven thousand, six hundred forty-eight".