40923343861 has 2 divisors, whose sum is σ = 40923343862. Its totient is φ = 40923343860.

The previous prime is 40923343807. The next prime is 40923343889. The reversal of 40923343861 is 16834332904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32366168836 + 8557175025 = 179906^2 + 92505^2 .

It is a cyclic number.

It is not a de Polignac number, because 40923343861 - 2²³ = 40914955253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40923343801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20461671930 + 20461671931.

It is an arithmetic number, because the mean of its divisors is an integer number (20461671931).

Almost surely, 2^40923343861 is an apocalyptic number.

It is an amenable number.

40923343861 is a deficient number, since it is larger than the sum of its proper divisors (1).

40923343861 is an equidigital number, since it uses as much as digits as its factorization.

40923343861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 40923343861 in words is "forty billion, nine hundred twenty-three million, three hundred forty-three thousand, eight hundred sixty-one".