6545406274 has 16 divisors (see below), whose sum is σ = 10720467936. Its totient is φ = 2972461600.

The previous prime is 6545406269. The next prime is 6545406289. The reversal of 6545406274 is 4726045456.

It is a self number, because there is not a number n which added to its sum of digits gives 6545406274.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111472 + ... + 159739.

It is an arithmetic number, because the mean of its divisors is an integer number (670029246).

Almost surely, 2^6545406274 is an apocalyptic number.

6545406274 is a deficient number, since it is larger than the sum of its proper divisors (4175061662).

6545406274 is a wasteful number, since it uses less digits than its factorization.

6545406274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272321.

The product of its (nonzero) digits is 806400, while the sum is 43.

The square root of 6545406274 is about 80903.6851694656. The cubic root of 6545406274 is about 1870.5911248534.

The spelling of 6545406274 in words is "six billion, five hundred forty-five million, four hundred six thousand, two hundred seventy-four".