6477624464425 has 6 divisors (see below), whose sum is σ = 8032254335918. Its totient is φ = 5182099571520.

The previous prime is 6477624464419. The next prime is 6477624464431. The reversal of 6477624464425 is 5244644267746.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6477624464419) and next prime (6477624464431).

It can be written as a sum of positive squares in 3 ways, for example, as 35586558736 + 6442037905689 = 188644^2 + 2538117^2 .

It is not a de Polignac number, because 6477624464425 - 2⁹ = 6477624463913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129552489264 + ... + 129552489313.

Almost surely, 2^{6477624464425} is an apocalyptic number.

It is an amenable number.

6477624464425 is a deficient number, since it is larger than the sum of its proper divisors (1554629871493).

6477624464425 is a wasteful number, since it uses less digits than its factorization.

6477624464425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259104978587 (or 259104978582 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 61.

The spelling of 6477624464425 in words is "six trillion, four hundred seventy-seven billion, six hundred twenty-four million, four hundred sixty-four thousand, four hundred twenty-five".