196981845051 has 32 divisors (see below), whose sum is σ = 278304378880. Its totient is φ = 123582996000.

The previous prime is 196981845029. The next prime is 196981845059. The reversal of 196981845051 is 150548189691.

It is not a de Polignac number, because 196981845051 - 2⁶ = 196981844987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 196981844982 and 196981845000.

It is not an unprimeable number, because it can be changed into a prime (196981845059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23697186 + ... + 23705496.

It is an arithmetic number, because the mean of its divisors is an integer number (8697011840).

Almost surely, 2^196981845051 is an apocalyptic number.

196981845051 is a deficient number, since it is larger than the sum of its proper divisors (81322533829).

196981845051 is a wasteful number, since it uses less digits than its factorization.

196981845051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11047.

The product of its (nonzero) digits is 3110400, while the sum is 57.

The spelling of 196981845051 in words is "one hundred ninety-six billion, nine hundred eighty-one million, eight hundred forty-five thousand, fifty-one".