40798854789591 has 8 divisors (see below), whose sum is σ = 54399522836080. Its totient is φ = 27198711634752.

The previous prime is 40798854789547. The next prime is 40798854789593. The reversal of 40798854789591 is 19598745889704.

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

It is not a de Polignac number, because 40798854789591 - 2¹⁰ = 40798854788567 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 (40798854789593) 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, 131041510 + ... + 131352483.

It is an arithmetic number, because the mean of its divisors is an integer number (6799940354510).

Almost surely, 2^{40798854789591} is an apocalyptic number.

40798854789591 is a deficient number, since it is larger than the sum of its proper divisors (13600668046489).

40798854789591 is a wasteful number, since it uses less digits than its factorization.

40798854789591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262445825.

The product of its (nonzero) digits is 7315660800, while the sum is 84.

The spelling of 40798854789591 in words is "forty trillion, seven hundred ninety-eight billion, eight hundred fifty-four million, seven hundred eighty-nine thousand, five hundred ninety-one".