6909331473408 has 352 divisors, whose sum is σ = 22828898606080. Its totient is φ = 1809121443840.

The previous prime is 6909331473379. The next prime is 6909331473433. The reversal of 6909331473408 is 8043741339096.

It is a super-2 number, since 2×6909331473408² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38768823 + ... + 38946633.

Almost surely, 2^{6909331473408} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6909331473408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11414449303040).

6909331473408 is an abundant number, since it is smaller than the sum of its proper divisors (15919567132672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6909331473408 is a wasteful number, since it uses less digits than its factorization.

6909331473408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177993 (or 177975 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 57.

The spelling of 6909331473408 in words is "six trillion, nine hundred nine billion, three hundred thirty-one million, four hundred seventy-three thousand, four hundred eight".