90600387391 has 2 divisors, whose sum is σ = 90600387392. Its totient is φ = 90600387390.

The previous prime is 90600387389. The next prime is 90600387421. The reversal of 90600387391 is 19378300609.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90600387391 - 2¹ = 90600387389 is a prime.

Together with 90600387389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90600387301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45300193695 + 45300193696.

It is an arithmetic number, because the mean of its divisors is an integer number (45300193696).

Almost surely, 2^90600387391 is an apocalyptic number.

90600387391 is a deficient number, since it is larger than the sum of its proper divisors (1).

90600387391 is an equidigital number, since it uses as much as digits as its factorization.

90600387391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 90600387391 in words is "ninety billion, six hundred million, three hundred eighty-seven thousand, three hundred ninety-one".