89477973469 has 8 divisors (see below), whose sum is σ = 92597175000. Its totient is φ = 86361022272.

The previous prime is 89477973371. The next prime is 89477973493. The reversal of 89477973469 is 96437977498.

It can be written as a sum of positive squares in 4 ways, for example, as 22804020100 + 66673953369 = 151010^2 + 258213^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 89477973469 - 2⁹ = 89477972957 is a prime.

It is a super-2 number, since 2×89477973469² (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 (89477973269) 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, 481474 + ... + 640915.

It is an arithmetic number, because the mean of its divisors is an integer number (11574646875).

Almost surely, 2^89477973469 is an apocalyptic number.

It is an amenable number.

89477973469 is a deficient number, since it is larger than the sum of its proper divisors (3119201531).

89477973469 is a wasteful number, since it uses less digits than its factorization.

89477973469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125167.

The product of its digits is 576108288, while the sum is 73.

The spelling of 89477973469 in words is "eighty-nine billion, four hundred seventy-seven million, nine hundred seventy-three thousand, four hundred sixty-nine".