73405037401 has 2 divisors, whose sum is σ = 73405037402. Its totient is φ = 73405037400.

The previous prime is 73405037393. The next prime is 73405037417. The reversal of 73405037401 is 10473050437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72616775625 + 788261776 = 269475^2 + 28076^2 .

It is a cyclic number.

It is not a de Polignac number, because 73405037401 - 2³ = 73405037393 is a prime.

It is not a weakly prime, because it can be changed into another prime (73405037491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36702518700 + 36702518701.

It is an arithmetic number, because the mean of its divisors is an integer number (36702518701).

Almost surely, 2^73405037401 is an apocalyptic number.

It is an amenable number.

73405037401 is a deficient number, since it is larger than the sum of its proper divisors (1).

73405037401 is an equidigital number, since it uses as much as digits as its factorization.

73405037401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 34.

Adding to 73405037401 its reverse (10473050437), we get a palindrome (83878087838).

The spelling of 73405037401 in words is "seventy-three billion, four hundred five million, thirty-seven thousand, four hundred one".