90930770791 has 8 divisors (see below), whose sum is σ = 103922704544. Its totient is φ = 77939292960.

The previous prime is 90930770789. The next prime is 90930770869. The reversal of 90930770791 is 19707703909.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90930770791 - 2¹ = 90930770789 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 (90930770701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 734821 + ... + 849601.

It is an arithmetic number, because the mean of its divisors is an integer number (12990338068).

Almost surely, 2^90930770791 is an apocalyptic number.

90930770791 is a deficient number, since it is larger than the sum of its proper divisors (12991933753).

90930770791 is a wasteful number, since it uses less digits than its factorization.

90930770791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227961.

The product of its (nonzero) digits is 750141, while the sum is 52.

The spelling of 90930770791 in words is "ninety billion, nine hundred thirty million, seven hundred seventy thousand, seven hundred ninety-one".