90826742791 has 8 divisors (see below), whose sum is σ = 94782048480. Its totient is φ = 86871963552.

The previous prime is 90826742767. The next prime is 90826742849. The reversal of 90826742791 is 19724762809.

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 90826742791 - 2⁵ = 90826742759 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 (90826742761) 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, 243765 + ... + 490993.

It is an arithmetic number, because the mean of its divisors is an integer number (11847756060).

Almost surely, 2^90826742791 is an apocalyptic number.

90826742791 is a deficient number, since it is larger than the sum of its proper divisors (3955305689).

90826742791 is a wasteful number, since it uses less digits than its factorization.

90826742791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263225.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 90826742791 in words is "ninety billion, eight hundred twenty-six million, seven hundred forty-two thousand, seven hundred ninety-one".