187864146242027 has 16 divisors (see below), whose sum is σ = 200278418598720. Its totient is φ = 175845359450112.

The previous prime is 187864146242009. The next prime is 187864146242093. The reversal of 187864146242027 is 720242641468781.

It is a cyclic number.

It is not a de Polignac number, because 187864146242027 - 2⁶ = 187864146241963 is a prime.

It is a super-2 number, since 2×187864146242027² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (187864146241027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472870268 + ... + 473267385.

It is an arithmetic number, because the mean of its divisors is an integer number (12517401162420).

Almost surely, 2^{187864146242027} is an apocalyptic number.

187864146242027 is a deficient number, since it is larger than the sum of its proper divisors (12414272356693).

187864146242027 is an equidigital number, since it uses as much as digits as its factorization.

187864146242027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946137862.

The product of its (nonzero) digits is 57802752, while the sum is 62.

The spelling of 187864146242027 in words is "one hundred eighty-seven trillion, eight hundred sixty-four billion, one hundred forty-six million, two hundred forty-two thousand, twenty-seven".