188400802847 has 2 divisors, whose sum is σ = 188400802848. Its totient is φ = 188400802846.

The previous prime is 188400802823. The next prime is 188400802871. The reversal of 188400802847 is 748208004881.

It is a balanced prime because it is at equal distance from previous prime (188400802823) and next prime (188400802871).

It is a cyclic number.

It is not a de Polignac number, because 188400802847 - 2¹⁶ = 188400737311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 188400802795 and 188400802804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188400804847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94200401423 + 94200401424.

It is an arithmetic number, because the mean of its divisors is an integer number (94200401424).

Almost surely, 2^188400802847 is an apocalyptic number.

188400802847 is a deficient number, since it is larger than the sum of its proper divisors (1).

188400802847 is an equidigital number, since it uses as much as digits as its factorization.

188400802847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 917504, while the sum is 50.

The spelling of 188400802847 in words is "one hundred eighty-eight billion, four hundred million, eight hundred two thousand, eight hundred forty-seven".