40991624597 has 12 divisors (see below), whose sum is σ = 51493612128. Its totient is φ = 31941525000.

The previous prime is 40991624591. The next prime is 40991624599. The reversal of 40991624597 is 79542619904.

It is not a de Polignac number, because 40991624597 - 2¹⁴ = 40991608213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40991624591) 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 11 ways as a sum of consecutive naturals, for example, 24197279 + ... + 24198972.

It is an arithmetic number, because the mean of its divisors is an integer number (4291134344).

Almost surely, 2^40991624597 is an apocalyptic number.

It is an amenable number.

40991624597 is a deficient number, since it is larger than the sum of its proper divisors (10501987531).

40991624597 is a wasteful number, since it uses less digits than its factorization.

40991624597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48396280 (or 48396269 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 40991624597 in words is "forty billion, nine hundred ninety-one million, six hundred twenty-four thousand, five hundred ninety-seven".