6453966898764 has 2304 divisors, whose sum is σ = 24944313139200. Its totient is φ = 1353977856000.

The previous prime is 6453966898703. The next prime is 6453966898861. The reversal of 6453966898764 is 4678986693546.

6453966898764 is a `hidden beast` number, since 6 + 4 + 539 + 6 + 6 + 8 + 9 + 8 + 76 + 4 = 666.

Its product of digits (11287019520) is a multiple of the sum of its prime factors (324).

It is an unprimeable number.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 60317447599 + ... + 60317447705.

It is an arithmetic number, because the mean of its divisors is an integer number (10826524800).

Almost surely, 2^{6453966898764} 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 6453966898764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12472156569600).

6453966898764 is an abundant number, since it is smaller than the sum of its proper divisors (18490346240436).

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

6453966898764 is a wasteful number, since it uses less digits than its factorization.

6453966898764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 319 counting only the distinct ones).

The product of its digits is 11287019520, while the sum is 81.

The spelling of 6453966898764 in words is "six trillion, four hundred fifty-three billion, nine hundred sixty-six million, eight hundred ninety-eight thousand, seven hundred sixty-four".