90348727871 has 4 divisors (see below), whose sum is σ = 90371034744. Its totient is φ = 90326421000.

The previous prime is 90348727837. The next prime is 90348727919. The reversal of 90348727871 is 17872784309.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90348727871 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 (90348727831) 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, 11147360 + ... + 11155461.

It is an arithmetic number, because the mean of its divisors is an integer number (22592758686).

Almost surely, 2^90348727871 is an apocalyptic number.

90348727871 is a deficient number, since it is larger than the sum of its proper divisors (22306873).

90348727871 is a wasteful number, since it uses less digits than its factorization.

90348727871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22306872.

The product of its (nonzero) digits is 4741632, while the sum is 56.

The spelling of 90348727871 in words is "ninety billion, three hundred forty-eight million, seven hundred twenty-seven thousand, eight hundred seventy-one".