40291642991 has 8 divisors (see below), whose sum is σ = 42414198000. Its totient is φ = 38169282240.

The previous prime is 40291642973. The next prime is 40291643057. The reversal of 40291642991 is 19924619204.

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 40291642991 - 2¹⁰ = 40291641967 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 (40291641991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598085 + ... + 662033.

It is an arithmetic number, because the mean of its divisors is an integer number (5301774750).

Almost surely, 2^40291642991 is an apocalyptic number.

40291642991 is a deficient number, since it is larger than the sum of its proper divisors (2122555009).

40291642991 is a wasteful number, since it uses less digits than its factorization.

40291642991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97129.

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 40291642991 in words is "forty billion, two hundred ninety-one million, six hundred forty-two thousand, nine hundred ninety-one".