399816130547 has 2 divisors, whose sum is σ = 399816130548. Its totient is φ = 399816130546.

The previous prime is 399816130517. The next prime is 399816130573. The reversal of 399816130547 is 745031618993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 399816130547 - 2³⁴ = 382636261363 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 399816130492 and 399816130501.

It is not a weakly prime, because it can be changed into another prime (399816130517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199908065273 + 199908065274.

It is an arithmetic number, because the mean of its divisors is an integer number (199908065274).

Almost surely, 2^399816130547 is an apocalyptic number.

399816130547 is a deficient number, since it is larger than the sum of its proper divisors (1).

399816130547 is an equidigital number, since it uses as much as digits as its factorization.

399816130547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 399816130547 in words is "three hundred ninety-nine billion, eight hundred sixteen million, one hundred thirty thousand, five hundred forty-seven".