90475057409 has 8 divisors (see below), whose sum is σ = 101883936000. Its totient is φ = 79596824400.

The previous prime is 90475057403. The next prime is 90475057459.

90475057409 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90475057409 is a prime.

It is a super-3 number, since 3×90475057409³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90475057403) 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, 132661034 + ... + 132661715.

It is an arithmetic number, because the mean of its divisors is an integer number (12735492000).

Almost surely, 2^90475057409 is an apocalyptic number.

It is an amenable number.

90475057409 is a deficient number, since it is larger than the sum of its proper divisors (11408878591).

90475057409 is a wasteful number, since it uses less digits than its factorization.

90475057409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265322791.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The spelling of 90475057409 in words is "ninety billion, four hundred seventy-five million, fifty-seven thousand, four hundred nine".