823415091404 has 48 divisors (see below), whose sum is σ = 1513081999296. Its totient is φ = 391338393600.

The previous prime is 823415091397. The next prime is 823415091409. The reversal of 823415091404 is 404190514328.

It is not an unprimeable number, because it can be changed into a prime (823415091409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9912764 + ... + 9995484.

It is an arithmetic number, because the mean of its divisors is an integer number (31522541652).

Almost surely, 2^823415091404 is an apocalyptic number.

It is an amenable number.

823415091404 is a deficient number, since it is larger than the sum of its proper divisors (689666907892).

823415091404 is a wasteful number, since it uses less digits than its factorization.

823415091404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83426 (or 83424 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 823415091404 in words is "eight hundred twenty-three billion, four hundred fifteen million, ninety-one thousand, four hundred four".