40227537191 has 4 divisors (see below), whose sum is σ = 40227988632. Its totient is φ = 40227085752.

The previous prime is 40227537187. The next prime is 40227537197. The reversal of 40227537191 is 19173572204.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40227537191 - 2² = 40227537187 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 (40227537197) 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, 42461 + ... + 286806.

It is an arithmetic number, because the mean of its divisors is an integer number (10056997158).

Almost surely, 2^40227537191 is an apocalyptic number.

40227537191 is a deficient number, since it is larger than the sum of its proper divisors (451441).

40227537191 is a wasteful number, since it uses less digits than its factorization.

40227537191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451440.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 40227537191 in words is "forty billion, two hundred twenty-seven million, five hundred thirty-seven thousand, one hundred ninety-one".