6546921245 has 16 divisors (see below), whose sum is σ = 8129646000. Its totient is φ = 5055418368.

The previous prime is 6546921233. The next prime is 6546921263. The reversal of 6546921245 is 5421296456.

It can be written as a sum of positive squares in 8 ways, for example, as 274598041 + 6272323204 = 16571^2 + 79198^2 .

It is a cyclic number.

It is not a de Polignac number, because 6546921245 - 2²² = 6542726941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6546921196 and 6546921205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 870461 + ... + 877949.

It is an arithmetic number, because the mean of its divisors is an integer number (508102875).

Almost surely, 2^6546921245 is an apocalyptic number.

It is an amenable number.

6546921245 is a deficient number, since it is larger than the sum of its proper divisors (1582724755).

6546921245 is a wasteful number, since it uses less digits than its factorization.

6546921245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13552.

The product of its digits is 518400, while the sum is 44.

The square root of 6546921245 is about 80913.0474336494. The cubic root of 6546921245 is about 1870.7354333234.

The spelling of 6546921245 in words is "six billion, five hundred forty-six million, nine hundred twenty-one thousand, two hundred forty-five".