6518125274 has 4 divisors (see below), whose sum is σ = 9777187914. Its totient is φ = 3259062636.

The previous prime is 6518125247. The next prime is 6518125277. The reversal of 6518125274 is 4725218156.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6388005625 + 130119649 = 79925^2 + 11407^2 .

It is not an unprimeable number, because it can be changed into a prime (6518125277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1629531317 + ... + 1629531320.

Almost surely, 2^6518125274 is an apocalyptic number.

6518125274 is a deficient number, since it is larger than the sum of its proper divisors (3259062640).

6518125274 is a wasteful number, since it uses less digits than its factorization.

6518125274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3259062639.

The product of its digits is 134400, while the sum is 41.

The square root of 6518125274 is about 80734.9074068956. The cubic root of 6518125274 is about 1867.9886553654.

The spelling of 6518125274 in words is "six billion, five hundred eighteen million, one hundred twenty-five thousand, two hundred seventy-four".