207138152447 has 2 divisors, whose sum is σ = 207138152448. Its totient is φ = 207138152446.

The previous prime is 207138152443. The next prime is 207138152461. The reversal of 207138152447 is 744251831702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 207138152447 - 2² = 207138152443 is a prime.

It is a super-2 number, since 2×207138152447² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 207138152398 and 207138152407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (207138152443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103569076223 + 103569076224.

It is an arithmetic number, because the mean of its divisors is an integer number (103569076224).

Almost surely, 2^207138152447 is an apocalyptic number.

207138152447 is a deficient number, since it is larger than the sum of its proper divisors (1).

207138152447 is an equidigital number, since it uses as much as digits as its factorization.

207138152447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 207138152447 in words is "two hundred seven billion, one hundred thirty-eight million, one hundred fifty-two thousand, four hundred forty-seven".