40752901850661 has 216 divisors, whose sum is σ = 82833428845440. Its totient is φ = 18867976807680.

The previous prime is 40752901850641. The next prime is 40752901850669. The reversal of 40752901850661 is 16605810925704.

It is a happy number.

40752901850661 is a `hidden beast` number, since 4 + 0 + 7 + 529 + 0 + 1 + 8 + 50 + 6 + 61 = 666.

It is not a de Polignac number, because 40752901850661 - 2¹⁰ = 40752901849637 is a prime.

It is a super-2 number, since 2×40752901850661² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40752901850598 and 40752901850607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40752901850669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 36814920 + ... + 37905726.

Almost surely, 2^{40752901850661} is an apocalyptic number.

It is an amenable number.

40752901850661 is an abundant number, since it is smaller than the sum of its proper divisors (42080526994779).

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

40752901850661 is a wasteful number, since it uses less digits than its factorization.

40752901850661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090897 (or 1090870 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 40752901850661 in words is "forty trillion, seven hundred fifty-two billion, nine hundred one million, eight hundred fifty thousand, six hundred sixty-one".