90776125669 has 4 divisors (see below), whose sum is σ = 90777717280. Its totient is φ = 90774534060.

The previous prime is 90776125639. The next prime is 90776125673. The reversal of 90776125669 is 96652167709.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90776125669 - 2⁹ = 90776125157 is a prime.

It is a super-2 number, since 2×90776125669² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90776125639) 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, 706947 + ... + 825424.

It is an arithmetic number, because the mean of its divisors is an integer number (22694429320).

Almost surely, 2^90776125669 is an apocalyptic number.

It is an amenable number.

90776125669 is a deficient number, since it is larger than the sum of its proper divisors (1591611).

90776125669 is a wasteful number, since it uses less digits than its factorization.

90776125669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591610.

The product of its (nonzero) digits is 8573040, while the sum is 58.

The spelling of 90776125669 in words is "ninety billion, seven hundred seventy-six million, one hundred twenty-five thousand, six hundred sixty-nine".