90799077461 has 4 divisors (see below), whose sum is σ = 91377415692. Its totient is φ = 90220739232.

The previous prime is 90799077443. The next prime is 90799077497. The reversal of 90799077461 is 16477099709.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36867840100 + 53931237361 = 192010^2 + 232231^2 .

It is a cyclic number.

It is not a de Polignac number, because 90799077461 - 2¹⁴ = 90799061077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90799077461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90799077661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289168880 + ... + 289169193.

It is an arithmetic number, because the mean of its divisors is an integer number (22844353923).

Almost surely, 2^90799077461 is an apocalyptic number.

It is an amenable number.

90799077461 is a deficient number, since it is larger than the sum of its proper divisors (578338231).

90799077461 is a wasteful number, since it uses less digits than its factorization.

90799077461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578338230.

The product of its (nonzero) digits is 6001128, while the sum is 59.

The spelling of 90799077461 in words is "ninety billion, seven hundred ninety-nine million, seventy-seven thousand, four hundred sixty-one".