6445254652774 has 8 divisors (see below), whose sum is σ = 11049007976208. Its totient is φ = 2762251994040.

The previous prime is 6445254652769. The next prime is 6445254652777. The reversal of 6445254652774 is 4772564525446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6445254652777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230187666157 + ... + 230187666184.

It is an arithmetic number, because the mean of its divisors is an integer number (1381125997026).

Almost surely, 2^{6445254652774} is an apocalyptic number.

6445254652774 is a deficient number, since it is larger than the sum of its proper divisors (4603753323434).

6445254652774 is a wasteful number, since it uses less digits than its factorization.

6445254652774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460375332350.

The product of its digits is 225792000, while the sum is 61.

The spelling of 6445254652774 in words is "six trillion, four hundred forty-five billion, two hundred fifty-four million, six hundred fifty-two thousand, seven hundred seventy-four".