90735068389 has 4 divisors (see below), whose sum is σ = 103697221024. Its totient is φ = 77772915756.

The previous prime is 90735068387. The next prime is 90735068429. The reversal of 90735068389 is 98386053709.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98386053709 = 2027 ⋅48537767.

It is a cyclic number.

It is not a de Polignac number, because 90735068389 - 2¹ = 90735068387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90735068381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6481076307 + ... + 6481076320.

It is an arithmetic number, because the mean of its divisors is an integer number (25924305256).

Almost surely, 2^90735068389 is an apocalyptic number.

It is an amenable number.

90735068389 is a deficient number, since it is larger than the sum of its proper divisors (12962152635).

90735068389 is a wasteful number, since it uses less digits than its factorization.

90735068389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12962152634.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 90735068389 in words is "ninety billion, seven hundred thirty-five million, sixty-eight thousand, three hundred eighty-nine".