187845481051 has 2 divisors, whose sum is σ = 187845481052. Its totient is φ = 187845481050.

The previous prime is 187845481013. The next prime is 187845481079. The reversal of 187845481051 is 150184548781.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 187845481051 - 2³¹ = 185697997403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 187845481051.

It is not a weakly prime, because it can be changed into another prime (187845481081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93922740525 + 93922740526.

It is an arithmetic number, because the mean of its divisors is an integer number (93922740526).

Almost surely, 2^187845481051 is an apocalyptic number.

187845481051 is a deficient number, since it is larger than the sum of its proper divisors (1).

187845481051 is an equidigital number, since it uses as much as digits as its factorization.

187845481051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1433600, while the sum is 52.

The spelling of 187845481051 in words is "one hundred eighty-seven billion, eight hundred forty-five million, four hundred eighty-one thousand, fifty-one".