207128894158 has 4 divisors (see below), whose sum is σ = 310693341240. Its totient is φ = 103564447078.

The previous prime is 207128894143. The next prime is 207128894171. The reversal of 207128894158 is 851498821702.

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

It is a junction number, because it is equal to n+sod(n) for n = 207128894099 and 207128894108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51782223538 + ... + 51782223541.

It is an arithmetic number, because the mean of its divisors is an integer number (77673335310).

Almost surely, 2^207128894158 is an apocalyptic number.

207128894158 is a deficient number, since it is larger than the sum of its proper divisors (103564447082).

207128894158 is a wasteful number, since it uses less digits than its factorization.

207128894158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103564447081.

The product of its (nonzero) digits is 2580480, while the sum is 55.

The spelling of 207128894158 in words is "two hundred seven billion, one hundred twenty-eight million, eight hundred ninety-four thousand, one hundred fifty-eight".