73613073533 has 2 divisors, whose sum is σ = 73613073534. Its totient is φ = 73613073532.

The previous prime is 73613073493. The next prime is 73613073539. The reversal of 73613073533 is 33537031637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55143719929 + 18469353604 = 234827^2 + 135902^2 .

It is a cyclic number.

It is not a de Polignac number, because 73613073533 - 2³⁶ = 4893596797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73613073539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36806536766 + 36806536767.

It is an arithmetic number, because the mean of its divisors is an integer number (36806536767).

Almost surely, 2^73613073533 is an apocalyptic number.

It is an amenable number.

73613073533 is a deficient number, since it is larger than the sum of its proper divisors (1).

73613073533 is an equidigital number, since it uses as much as digits as its factorization.

73613073533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 357210, while the sum is 41.

The spelling of 73613073533 in words is "seventy-three billion, six hundred thirteen million, seventy-three thousand, five hundred thirty-three".