188748146831 has 2 divisors, whose sum is σ = 188748146832. Its totient is φ = 188748146830.

The previous prime is 188748146827. The next prime is 188748146849. The reversal of 188748146831 is 138641847881.

It is a weak prime.

It is an emirp because it is prime and its reverse (138641847881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 188748146831 - 2² = 188748146827 is a prime.

It is a super-2 number, since 2×188748146831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188748146801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94374073415 + 94374073416.

It is an arithmetic number, because the mean of its divisors is an integer number (94374073416).

Almost surely, 2^188748146831 is an apocalyptic number.

188748146831 is a deficient number, since it is larger than the sum of its proper divisors (1).

188748146831 is an equidigital number, since it uses as much as digits as its factorization.

188748146831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8257536, while the sum is 59.

The spelling of 188748146831 in words is "one hundred eighty-eight billion, seven hundred forty-eight million, one hundred forty-six thousand, eight hundred thirty-one".