209062939054 has 4 divisors (see below), whose sum is σ = 313594408584. Its totient is φ = 104531469526.

The previous prime is 209062939051. The next prime is 209062939061. The reversal of 209062939054 is 450939260902.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 209062938989 and 209062939007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209062939051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52265734762 + ... + 52265734765.

It is an arithmetic number, because the mean of its divisors is an integer number (78398602146).

Almost surely, 2^209062939054 is an apocalyptic number.

209062939054 is a deficient number, since it is larger than the sum of its proper divisors (104531469530).

209062939054 is a wasteful number, since it uses less digits than its factorization.

209062939054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104531469529.

The product of its (nonzero) digits is 1049760, while the sum is 49.

The spelling of 209062939054 in words is "two hundred nine billion, sixty-two million, nine hundred thirty-nine thousand, fifty-four".