100073637449 has 2 divisors, whose sum is σ = 100073637450. Its totient is φ = 100073637448.

The previous prime is 100073637409. The next prime is 100073637451. The reversal of 100073637449 is 944736370001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63148171849 + 36925465600 = 251293^2 + 192160^2 .

It is a cyclic number.

It is not a de Polignac number, because 100073637449 - 2⁸ = 100073637193 is a prime.

Together with 100073637451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100073637409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50036818724 + 50036818725.

It is an arithmetic number, because the mean of its divisors is an integer number (50036818725).

Almost surely, 2^100073637449 is an apocalyptic number.

It is an amenable number.

100073637449 is a deficient number, since it is larger than the sum of its proper divisors (1).

100073637449 is an equidigital number, since it uses as much as digits as its factorization.

100073637449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 44.

The spelling of 100073637449 in words is "one hundred billion, seventy-three million, six hundred thirty-seven thousand, four hundred forty-nine".