438475201187 has 2 divisors, whose sum is σ = 438475201188. Its totient is φ = 438475201186.

The previous prime is 438475201139. The next prime is 438475201201. The reversal of 438475201187 is 781102574834.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 438475201187 - 2¹⁸ = 438474939043 is a prime.

It is not a weakly prime, because it can be changed into another prime (438475200187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219237600593 + 219237600594.

It is an arithmetic number, because the mean of its divisors is an integer number (219237600594).

Almost surely, 2^438475201187 is an apocalyptic number.

438475201187 is a deficient number, since it is larger than the sum of its proper divisors (1).

438475201187 is an equidigital number, since it uses as much as digits as its factorization.

438475201187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1505280, while the sum is 50.

The spelling of 438475201187 in words is "four hundred thirty-eight billion, four hundred seventy-five million, two hundred one thousand, one hundred eighty-seven".