40981598291 has 4 divisors (see below), whose sum is σ = 40985344032. Its totient is φ = 40977852552.

The previous prime is 40981598227. The next prime is 40981598293. The reversal of 40981598291 is 19289518904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40981598291 - 2⁶ = 40981598227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40981598293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1856411 + ... + 1878356.

It is an arithmetic number, because the mean of its divisors is an integer number (10246336008).

Almost surely, 2^40981598291 is an apocalyptic number.

40981598291 is a deficient number, since it is larger than the sum of its proper divisors (3745741).

40981598291 is a wasteful number, since it uses less digits than its factorization.

40981598291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745740.

The product of its (nonzero) digits is 1866240, while the sum is 56.

The spelling of 40981598291 in words is "forty billion, nine hundred eighty-one million, five hundred ninety-eight thousand, two hundred ninety-one".