6898945499136 has 560 divisors, whose sum is σ = 21643379461440. Its totient is φ = 2186801971200.

The previous prime is 6898945499077. The next prime is 6898945499137. The reversal of 6898945499136 is 6319945498986.

6898945499136 is a `hidden beast` number, since 6 + 8 + 9 + 8 + 94 + 5 + 499 + 1 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (6898945499137) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1289278861 + ... + 1289284211.

Almost surely, 2^{6898945499136} 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 6898945499136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10821689730720).

6898945499136 is an abundant number, since it is smaller than the sum of its proper divisors (14744433962304).

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

6898945499136 is an equidigital number, since it uses as much as digits as its factorization.

6898945499136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5485 (or 5452 counting only the distinct ones).

The product of its digits is 3627970560, while the sum is 81.

The spelling of 6898945499136 in words is "six trillion, eight hundred ninety-eight billion, nine hundred forty-five million, four hundred ninety-nine thousand, one hundred thirty-six".