90432340513 has 2 divisors, whose sum is σ = 90432340514. Its totient is φ = 90432340512.

The previous prime is 90432340421. The next prime is 90432340519. The reversal of 90432340513 is 31504323409.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65021430049 + 25410910464 = 254993^2 + 159408^2 .

It is a cyclic number.

It is not a de Polignac number, because 90432340513 - 2¹³ = 90432332321 is a prime.

It is a super-2 number, since 2×90432340513² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (90432340519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45216170256 + 45216170257.

It is an arithmetic number, because the mean of its divisors is an integer number (45216170257).

Almost surely, 2^90432340513 is an apocalyptic number.

It is an amenable number.

90432340513 is a deficient number, since it is larger than the sum of its proper divisors (1).

90432340513 is an equidigital number, since it uses as much as digits as its factorization.

90432340513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 90432340513 in words is "ninety billion, four hundred thirty-two million, three hundred forty thousand, five hundred thirteen".