40114537891 has 2 divisors, whose sum is σ = 40114537892. Its totient is φ = 40114537890.

The previous prime is 40114537769. The next prime is 40114537961. The reversal of 40114537891 is 19873541104.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40114537891 - 2¹³ = 40114529699 is a prime.

It is not a weakly prime, because it can be changed into another prime (40114537691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20057268945 + 20057268946.

It is an arithmetic number, because the mean of its divisors is an integer number (20057268946).

Almost surely, 2^40114537891 is an apocalyptic number.

40114537891 is a deficient number, since it is larger than the sum of its proper divisors (1).

40114537891 is an equidigital number, since it uses as much as digits as its factorization.

40114537891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 40114537891 in words is "forty billion, one hundred fourteen million, five hundred thirty-seven thousand, eight hundred ninety-one".