197010534864 has 640 divisors, whose sum is σ = 660917698560. Its totient is φ = 49626316800.

The previous prime is 197010534857. The next prime is 197010534869. The reversal of 197010534864 is 468435010791.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197010534869) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 387053842 + ... + 387054350.

It is an arithmetic number, because the mean of its divisors is an integer number (1032683904).

Almost surely, 2^197010534864 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 197010534864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330458849280).

197010534864 is an abundant number, since it is smaller than the sum of its proper divisors (463907163696).

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

197010534864 is a wasteful number, since it uses less digits than its factorization.

197010534864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 197010534864 in words is "one hundred ninety-seven billion, ten million, five hundred thirty-four thousand, eight hundred sixty-four".