197691625107 has 40 divisors (see below), whose sum is σ = 304912488320. Its totient is φ = 127514113920.

The previous prime is 197691625097. The next prime is 197691625133. The reversal of 197691625107 is 701526196791.

197691625107 is a `hidden beast` number, since 1 + 9 + 7 + 6 + 9 + 1 + 625 + 1 + 0 + 7 = 666.

It is not a de Polignac number, because 197691625107 - 2¹⁵ = 197691592339 is a prime.

It is a super-2 number, since 2×197691625107² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (197691621107) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20306613 + ... + 20316345.

It is an arithmetic number, because the mean of its divisors is an integer number (7622812208).

Almost surely, 2^197691625107 is an apocalyptic number.

197691625107 is a deficient number, since it is larger than the sum of its proper divisors (107220863213).

197691625107 is an equidigital number, since it uses as much as digits as its factorization.

197691625107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17865 (or 17856 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 54.

The spelling of 197691625107 in words is "one hundred ninety-seven billion, six hundred ninety-one million, six hundred twenty-five thousand, one hundred seven".