104643387437 has 2 divisors, whose sum is σ = 104643387438. Its totient is φ = 104643387436.

The previous prime is 104643387419. The next prime is 104643387449. The reversal of 104643387437 is 734783346401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56254826761 + 48388560676 = 237181^2 + 219974^2 .

It is a cyclic number.

It is not a de Polignac number, because 104643387437 - 2¹⁰ = 104643386413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104643380437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52321693718 + 52321693719.

It is an arithmetic number, because the mean of its divisors is an integer number (52321693719).

Almost surely, 2^104643387437 is an apocalyptic number.

It is an amenable number.

104643387437 is a deficient number, since it is larger than the sum of its proper divisors (1).

104643387437 is an equidigital number, since it uses as much as digits as its factorization.

104643387437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 50.

The spelling of 104643387437 in words is "one hundred four billion, six hundred forty-three million, three hundred eighty-seven thousand, four hundred thirty-seven".