40373542829 has 2 divisors, whose sum is σ = 40373542830. Its totient is φ = 40373542828.

The previous prime is 40373542817. The next prime is 40373542831. The reversal of 40373542829 is 92824537304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21611940100 + 18761602729 = 147010^2 + 136973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40373542829 is a prime.

Together with 40373542831, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40373542129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20186771414 + 20186771415.

It is an arithmetic number, because the mean of its divisors is an integer number (20186771415).

Almost surely, 2^40373542829 is an apocalyptic number.

It is an amenable number.

40373542829 is a deficient number, since it is larger than the sum of its proper divisors (1).

40373542829 is an equidigital number, since it uses as much as digits as its factorization.

40373542829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 40373542829 in words is "forty billion, three hundred seventy-three million, five hundred forty-two thousand, eight hundred twenty-nine".