73502513401 has 2 divisors, whose sum is σ = 73502513402. Its totient is φ = 73502513400.

The previous prime is 73502513363. The next prime is 73502513501. The reversal of 73502513401 is 10431520537.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37364503401 + 36138010000 = 193299^2 + 190100^2 .

It is a cyclic number.

It is not a de Polignac number, because 73502513401 - 2¹⁷ = 73502382329 is a prime.

It is not a weakly prime, because it can be changed into another prime (73502513501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36751256700 + 36751256701.

It is an arithmetic number, because the mean of its divisors is an integer number (36751256701).

Almost surely, 2^73502513401 is an apocalyptic number.

It is an amenable number.

73502513401 is a deficient number, since it is larger than the sum of its proper divisors (1).

73502513401 is an equidigital number, since it uses as much as digits as its factorization.

73502513401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 31.

The spelling of 73502513401 in words is "seventy-three billion, five hundred two million, five hundred thirteen thousand, four hundred one".