40323102437 has 2 divisors, whose sum is σ = 40323102438. Its totient is φ = 40323102436.

The previous prime is 40323102433. The next prime is 40323102473. The reversal of 40323102437 is 73420132304.

Together with next prime (40323102473) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27998994241 + 12324108196 = 167329^2 + 111014^2 .

It is a cyclic number.

It is not a de Polignac number, because 40323102437 - 2² = 40323102433 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40323102433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20161551218 + 20161551219.

It is an arithmetic number, because the mean of its divisors is an integer number (20161551219).

Almost surely, 2^40323102437 is an apocalyptic number.

It is an amenable number.

40323102437 is a deficient number, since it is larger than the sum of its proper divisors (1).

40323102437 is an equidigital number, since it uses as much as digits as its factorization.

40323102437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 29.

The spelling of 40323102437 in words is "forty billion, three hundred twenty-three million, one hundred two thousand, four hundred thirty-seven".