197958950126 has 24 divisors (see below), whose sum is σ = 357329144520. Its totient is φ = 81914047152.

The previous prime is 197958950087. The next prime is 197958950149. The reversal of 197958950126 is 621059859791.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34824560 + ... + 34830243.

It is an arithmetic number, because the mean of its divisors is an integer number (14888714355).

Almost surely, 2^197958950126 is an apocalyptic number.

197958950126 is a deficient number, since it is larger than the sum of its proper divisors (159370194394).

197958950126 is a wasteful number, since it uses less digits than its factorization.

197958950126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69654848 (or 69654841 counting only the distinct ones).

The product of its (nonzero) digits is 12247200, while the sum is 62.

The spelling of 197958950126 in words is "one hundred ninety-seven billion, nine hundred fifty-eight million, nine hundred fifty thousand, one hundred twenty-six".