6771940625 has 12 divisors (see below), whose sum is σ = 8464387932. Its totient is φ = 5417550000.

The previous prime is 6771940619. The next prime is 6771940627. The reversal of 6771940625 is 5260491776.

It can be written as a sum of positive squares in 6 ways, for example, as 6742216321 + 29724304 = 82111^2 + 5452^2 .

It is not a de Polignac number, because 6771940625 - 2⁶ = 6771940561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6771940625.

It is not an unprimeable number, because it can be changed into a prime (6771940627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1080386 + ... + 1086635.

It is an arithmetic number, because the mean of its divisors is an integer number (705365661).

Almost surely, 2^6771940625 is an apocalyptic number.

It is an amenable number.

6771940625 is a deficient number, since it is larger than the sum of its proper divisors (1692447307).

6771940625 is an frugal number, since it uses more digits than its factorization.

6771940625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167046 (or 2167026 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 6771940625 is about 82291.8016876529. The cubic root of 6771940625 is about 1891.9270235766.

The spelling of 6771940625 in words is "six billion, seven hundred seventy-one million, nine hundred forty thousand, six hundred twenty-five".