398919085253 has 8 divisors (see below), whose sum is σ = 432488427000. Its totient is φ = 365761637568.

The previous prime is 398919085177. The next prime is 398919085291. The reversal of 398919085253 is 352580919893.

It can be written as a sum of positive squares in 4 ways, for example, as 4857811204 + 394061274049 = 69698^2 + 627743^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 398919085253 - 2¹⁰ = 398919084229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398919085553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102971498 + ... + 102975371.

It is an arithmetic number, because the mean of its divisors is an integer number (54061053375).

Almost surely, 2^398919085253 is an apocalyptic number.

It is an amenable number.

398919085253 is a deficient number, since it is larger than the sum of its proper divisors (33569341747).

398919085253 is a wasteful number, since it uses less digits than its factorization.

398919085253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205947031.

The product of its (nonzero) digits is 20995200, while the sum is 62.

The spelling of 398919085253 in words is "three hundred ninety-eight billion, nine hundred nineteen million, eighty-five thousand, two hundred fifty-three".