693939438125 has 20 divisors (see below), whose sum is σ = 872159266572. Its totient is φ = 551942496000.

The previous prime is 693939438103. The next prime is 693939438131. The reversal of 693939438125 is 521834939396.

It can be written as a sum of positive squares in 10 ways, for example, as 323172921289 + 370766516836 = 568483^2 + 608906^2 .

It is not a de Polignac number, because 693939438125 - 2¹⁰ = 693939437101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3100844 + ... + 3317093.

Almost surely, 2^693939438125 is an apocalyptic number.

It is an amenable number.

693939438125 is a deficient number, since it is larger than the sum of its proper divisors (178219828447).

693939438125 is an equidigital number, since it uses as much as digits as its factorization.

693939438125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6418130 (or 6418115 counting only the distinct ones).

The product of its digits is 37791360, while the sum is 62.

The spelling of 693939438125 in words is "six hundred ninety-three billion, nine hundred thirty-nine million, four hundred thirty-eight thousand, one hundred twenty-five".