40732377943 has 2 divisors, whose sum is σ = 40732377944. Its totient is φ = 40732377942.

The previous prime is 40732377823. The next prime is 40732377947. The reversal of 40732377943 is 34977323704.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40732377943 - 2¹³ = 40732369751 is a prime.

It is a super-2 number, since 2×40732377943² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40732377947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20366188971 + 20366188972.

It is an arithmetic number, because the mean of its divisors is an integer number (20366188972).

Almost surely, 2^40732377943 is an apocalyptic number.

40732377943 is a deficient number, since it is larger than the sum of its proper divisors (1).

40732377943 is an equidigital number, since it uses as much as digits as its factorization.

40732377943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2667168, while the sum is 49.

The spelling of 40732377943 in words is "forty billion, seven hundred thirty-two million, three hundred seventy-seven thousand, nine hundred forty-three".