6990791346 has 160 divisors (see below), whose sum is σ = 20007630720. Its totient is φ = 1771372800.

The previous prime is 6990791333. The next prime is 6990791363. The reversal of 6990791346 is 6431970996.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 6990791292 and 6990791301.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 504600 + ... + 518268.

It is an arithmetic number, because the mean of its divisors is an integer number (125047692).

Almost surely, 2^6990791346 is an apocalyptic number.

6990791346 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6990791346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10003815360).

6990791346 is an abundant number, since it is smaller than the sum of its proper divisors (13016839374).

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

6990791346 is a wasteful number, since it uses less digits than its factorization.

6990791346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13742 (or 13733 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The square root of 6990791346 is about 83610.9523088931. The cubic root of 6990791346 is about 1912.0919803165.

The spelling of 6990791346 in words is "six billion, nine hundred ninety million, seven hundred ninety-one thousand, three hundred forty-six".