197007257288 has 8 divisors (see below), whose sum is σ = 369388607430. Its totient is φ = 98503628640.

The previous prime is 197007257287. The next prime is 197007257299. The reversal of 197007257288 is 882752700791.

It can be written as a sum of positive squares in only one way, i.e., 193105755844 + 3901501444 = 439438^2 + 62462^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×197007257288² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (197007257287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12312953573 + ... + 12312953588.

Almost surely, 2^197007257288 is an apocalyptic number.

It is an amenable number.

197007257288 is a deficient number, since it is larger than the sum of its proper divisors (172381350142).

197007257288 is a wasteful number, since it uses less digits than its factorization.

197007257288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24625907167 (or 24625907163 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 56.

The spelling of 197007257288 in words is "one hundred ninety-seven billion, seven million, two hundred fifty-seven thousand, two hundred eighty-eight".