40486696997 has 8 divisors (see below), whose sum is σ = 40639589016. Its totient is φ = 40333853952.

The previous prime is 40486696993. The next prime is 40486697023. The reversal of 40486696997 is 79969668404.

It is a happy number.

40486696997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10755971521 + 29730725476 = 103711^2 + 172426^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40486696997 - 2² = 40486696993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40486696993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3178313 + ... + 3191025.

It is an arithmetic number, because the mean of its divisors is an integer number (5079948627).

Almost surely, 2^40486696997 is an apocalyptic number.

It is an amenable number.

40486696997 is a deficient number, since it is larger than the sum of its proper divisors (152892019).

40486696997 is a wasteful number, since it uses less digits than its factorization.

40486696997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24487.

The product of its (nonzero) digits is 141087744, while the sum is 68.

The spelling of 40486696997 in words is "forty billion, four hundred eighty-six million, six hundred ninety-six thousand, nine hundred ninety-seven".