519449634097 has 4 divisors (see below), whose sum is σ = 520470164340. Its totient is φ = 518429103856.

The previous prime is 519449634091. The next prime is 519449634103. The reversal of 519449634097 is 790436944915.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (519449634091) and next prime (519449634103).

It can be written as a sum of positive squares in 2 ways, for example, as 383954968881 + 135494665216 = 619641^2 + 368096^2 .

It is a cyclic number.

It is not a de Polignac number, because 519449634097 - 2³ = 519449634089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (519449634091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510264358 + ... + 510265375.

It is an arithmetic number, because the mean of its divisors is an integer number (130117541085).

Almost surely, 2^519449634097 is an apocalyptic number.

It is an amenable number.

519449634097 is a deficient number, since it is larger than the sum of its proper divisors (1020530243).

519449634097 is a wasteful number, since it uses less digits than its factorization.

519449634097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020530242.

The product of its (nonzero) digits is 29393280, while the sum is 61.

The spelling of 519449634097 in words is "five hundred nineteen billion, four hundred forty-nine million, six hundred thirty-four thousand, ninety-seven".