398627548619 has 2 divisors, whose sum is σ = 398627548620. Its totient is φ = 398627548618.

The previous prime is 398627548387. The next prime is 398627548639. The reversal of 398627548619 is 916845726893.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 398627548619 - 2²⁰ = 398626500043 is a prime.

It is a super-2 number, since 2×398627548619² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (398627548639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199313774309 + 199313774310.

It is an arithmetic number, because the mean of its divisors is an integer number (199313774310).

Almost surely, 2^398627548619 is an apocalyptic number.

398627548619 is a deficient number, since it is larger than the sum of its proper divisors (1).

398627548619 is an equidigital number, since it uses as much as digits as its factorization.

398627548619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156764160, while the sum is 68.

The spelling of 398627548619 in words is "three hundred ninety-eight billion, six hundred twenty-seven million, five hundred forty-eight thousand, six hundred nineteen".