187071691345 has 16 divisors (see below), whose sum is σ = 279878686848. Its totient is φ = 116616119040.

The previous prime is 187071691337. The next prime is 187071691351. The reversal of 187071691345 is 543196170781.

It is not a de Polignac number, because 187071691345 - 2³ = 187071691337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 187071691292 and 187071691301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242949864 + ... + 242950633.

It is an arithmetic number, because the mean of its divisors is an integer number (17492417928).

Almost surely, 2^187071691345 is an apocalyptic number.

It is an amenable number.

187071691345 is a deficient number, since it is larger than the sum of its proper divisors (92806995503).

187071691345 is a wasteful number, since it uses less digits than its factorization.

187071691345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485900520.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 187071691345 in words is "one hundred eighty-seven billion, seventy-one million, six hundred ninety-one thousand, three hundred forty-five".