40784573939697 has 24 divisors (see below), whose sum is σ = 67327210416960. Its totient is φ = 23305368808800.

The previous prime is 40784573939671. The next prime is 40784573939773. The reversal of 40784573939697 is 79693937548704.

It is a happy number.

40784573939697 is a `hidden beast` number, since 4 + 0 + 7 + 8 + 4 + 57 + 393 + 96 + 97 = 666.

It is not a de Polignac number, because 40784573939697 - 2⁶ = 40784573939633 is a prime.

It is a super-2 number, since 2×40784573939697² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40784573939597) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14497447 + ... + 17080547.

It is an arithmetic number, because the mean of its divisors is an integer number (2805300434040).

Almost surely, 2^{40784573939697} is an apocalyptic number.

It is an amenable number.

40784573939697 is a deficient number, since it is larger than the sum of its proper divisors (26542636477263).

40784573939697 is a wasteful number, since it uses less digits than its factorization.

40784573939697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2833733 (or 2833730 counting only the distinct ones).

The product of its (nonzero) digits is 8641624320, while the sum is 81.

The spelling of 40784573939697 in words is "forty trillion, seven hundred eighty-four billion, five hundred seventy-three million, nine hundred thirty-nine thousand, six hundred ninety-seven".