197770570368 has 128 divisors (see below), whose sum is σ = 615018579840. Its totient is φ = 55127654400.

The previous prime is 197770570351. The next prime is 197770570369. The reversal of 197770570368 is 863075077791.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×197770570368² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (197770570369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787053 + ... + 1007468.

It is an arithmetic number, because the mean of its divisors is an integer number (4804832655).

Almost surely, 2^197770570368 is an apocalyptic number.

It is an amenable number.

197770570368 is an abundant number, since it is smaller than the sum of its proper divisors (417248009472).

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

197770570368 is a wasteful number, since it uses less digits than its factorization.

197770570368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794586 (or 1794574 counting only the distinct ones).

The product of its (nonzero) digits is 15558480, while the sum is 60.

The spelling of 197770570368 in words is "one hundred ninety-seven billion, seven hundred seventy million, five hundred seventy thousand, three hundred sixty-eight".