6539154974 has 16 divisors (see below), whose sum is σ = 10706952816. Its totient is φ = 2970532800.

The previous prime is 6539154971. The next prime is 6539154991. The reversal of 6539154974 is 4794519356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6539154971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53237 + ... + 126144.

It is an arithmetic number, because the mean of its divisors is an integer number (669184551).

Almost surely, 2^6539154974 is an apocalyptic number.

6539154974 is a deficient number, since it is larger than the sum of its proper divisors (4167797842).

6539154974 is a wasteful number, since it uses less digits than its factorization.

6539154974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181051.

The product of its digits is 4082400, while the sum is 53.

The square root of 6539154974 is about 80865.0417300331. The cubic root of 6539154974 is about 1869.9954220293.

The spelling of 6539154974 in words is "six billion, five hundred thirty-nine million, one hundred fifty-four thousand, nine hundred seventy-four".