6781414725 has 36 divisors (see below), whose sum is σ = 12208003236. Its totient is φ = 3598371840.

The previous prime is 6781414721. The next prime is 6781414729. The reversal of 6781414725 is 5274141876.

6781414725 is a `hidden beast` number, since 67 + 81 + 41 + 472 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (6781414721) and next prime (6781414729).

It can be written as a sum of positive squares in 6 ways, for example, as 33942276 + 6747472449 = 5826^2 + 82143^2 .

It is not a de Polignac number, because 6781414725 - 2² = 6781414721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6781414721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32172 + ... + 120821.

It is an arithmetic number, because the mean of its divisors is an integer number (339111201).

Almost surely, 2^6781414725 is an apocalyptic number.

It is an amenable number.

6781414725 is a deficient number, since it is larger than the sum of its proper divisors (5426588511).

6781414725 is a wasteful number, since it uses less digits than its factorization.

6781414725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153206 (or 153198 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 6781414725 is about 82349.3456258154. The cubic root of 6781414725 is about 1892.8088955272.

It can be divided in two parts, 678 and 1414725, that added together give a triangular number (1415403 = T₁₆₈₂).

The spelling of 6781414725 in words is "six billion, seven hundred eighty-one million, four hundred fourteen thousand, seven hundred twenty-five".