197057887488 has 432 divisors, whose sum is σ = 731234230272. Its totient is φ = 49531392000.

The previous prime is 197057887399. The next prime is 197057887513. The reversal of 197057887488 is 884788750791.

197057887488 is a `hidden beast` number, since 1 + 9 + 7 + 0 + 578 + 8 + 7 + 48 + 8 = 666.

It is a super-2 number, since 2×197057887488² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5481733 + ... + 5517563.

Almost surely, 2^197057887488 is an apocalyptic number.

197057887488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197057887488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365617115136).

197057887488 is an abundant number, since it is smaller than the sum of its proper divisors (534176342784).

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

197057887488 is a wasteful number, since it uses less digits than its factorization.

197057887488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35902 (or 35885 counting only the distinct ones).

The product of its (nonzero) digits is 252887040, while the sum is 72.

It can be divided in two parts, 19 and 7057887488, that added together give a palindrome (7057887507).

The spelling of 197057887488 in words is "one hundred ninety-seven billion, fifty-seven million, eight hundred eighty-seven thousand, four hundred eighty-eight".