620923085425 has 6 divisors (see below), whose sum is σ = 769944625958. Its totient is φ = 496738468320.

The previous prime is 620923085381. The next prime is 620923085483. The reversal of 620923085425 is 524580329026.

It can be written as a sum of positive squares in 3 ways, for example, as 127905654321 + 493017431104 = 357639^2 + 702152^2 .

It is not a de Polignac number, because 620923085425 - 2¹³ = 620923077233 is a prime.

It is a super-3 number, since 3×620923085425³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12418461684 + ... + 12418461733.

Almost surely, 2^620923085425 is an apocalyptic number.

It is an amenable number.

620923085425 is a deficient number, since it is larger than the sum of its proper divisors (149021540533).

620923085425 is a wasteful number, since it uses less digits than its factorization.

620923085425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24836923427 (or 24836923422 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 620923085425 in words is "six hundred twenty billion, nine hundred twenty-three million, eighty-five thousand, four hundred twenty-five".