196920438541 has 32 divisors (see below), whose sum is σ = 209299865600. Its totient is φ = 185009235840.

The previous prime is 196920438487. The next prime is 196920438593. The reversal of 196920438541 is 145834029691.

It is a cyclic number.

It is not a de Polignac number, because 196920438541 - 2³⁵ = 162560700173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196920438641) 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, 174419665 + ... + 174420793.

It is an arithmetic number, because the mean of its divisors is an integer number (6540620800).

Almost surely, 2^196920438541 is an apocalyptic number.

It is an amenable number.

196920438541 is a deficient number, since it is larger than the sum of its proper divisors (12379427059).

196920438541 is a wasteful number, since it uses less digits than its factorization.

196920438541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 196920438541 in words is "one hundred ninety-six billion, nine hundred twenty million, four hundred thirty-eight thousand, five hundred forty-one".