90234179471 has 2 divisors, whose sum is σ = 90234179472. Its totient is φ = 90234179470.

The previous prime is 90234179467. The next prime is 90234179489. The reversal of 90234179471 is 17497143209.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90234179471 - 2² = 90234179467 is a prime.

It is a super-3 number, since 3×90234179471³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90234179401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45117089735 + 45117089736.

It is an arithmetic number, because the mean of its divisors is an integer number (45117089736).

Almost surely, 2^90234179471 is an apocalyptic number.

90234179471 is a deficient number, since it is larger than the sum of its proper divisors (1).

90234179471 is an equidigital number, since it uses as much as digits as its factorization.

90234179471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 90234179471 in words is "ninety billion, two hundred thirty-four million, one hundred seventy-nine thousand, four hundred seventy-one".