90493432795 has 4 divisors (see below), whose sum is σ = 108592119360. Its totient is φ = 72394746232.

The previous prime is 90493432793. The next prime is 90493432801. The reversal of 90493432795 is 59723439409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59723439409 = 89 ⋅671049881.

It is a cyclic number.

It is not a de Polignac number, because 90493432795 - 2¹ = 90493432793 is a prime.

It is a super-2 number, since 2×90493432795² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90493432793) 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 in 3 ways as a sum of consecutive naturals, for example, 9049343275 + ... + 9049343284.

It is an arithmetic number, because the mean of its divisors is an integer number (27148029840).

Almost surely, 2^90493432795 is an apocalyptic number.

90493432795 is a deficient number, since it is larger than the sum of its proper divisors (18098686565).

90493432795 is a wasteful number, since it uses less digits than its factorization.

90493432795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18098686564.

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 90493432795 in words is "ninety billion, four hundred ninety-three million, four hundred thirty-two thousand, seven hundred ninety-five".