64898192736 has 192 divisors, whose sum is σ = 206366408640. Its totient is φ = 19968394752.

The previous prime is 64898192729. The next prime is 64898192741. The reversal of 64898192736 is 63729189846.

64898192736 is a `hidden beast` number, since 6 + 489 + 81 + 9 + 2 + 73 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 874126 + ... + 945458.

It is an arithmetic number, because the mean of its divisors is an integer number (1074825045).

Almost surely, 2^64898192736 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 64898192736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103183204320).

64898192736 is an abundant number, since it is smaller than the sum of its proper divisors (141468215904).

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

64898192736 is an equidigital number, since it uses as much as digits as its factorization.

64898192736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71377 (or 71351 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

It can be divided in two parts, 6489 and 8192736, that added together give a triangular number (8199225 = T₄₀₄₉).

The spelling of 64898192736 in words is "sixty-four billion, eight hundred ninety-eight million, one hundred ninety-two thousand, seven hundred thirty-six".