6345557477 has 12 divisors (see below), whose sum is σ = 7409023020. Its totient is φ = 5418818496.

The previous prime is 6345557459. The next prime is 6345557489. The reversal of 6345557477 is 7747555436.

6345557477 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2303904001 + 4041653476 = 47999^2 + 63574^2 .

It is not a de Polignac number, because 6345557477 - 2¹² = 6345553381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6345557677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227528 + ... + 253889.

It is an arithmetic number, because the mean of its divisors is an integer number (617418585).

Almost surely, 2^6345557477 is an apocalyptic number.

It is an amenable number.

6345557477 is a deficient number, since it is larger than the sum of its proper divisors (1063465543).

6345557477 is a wasteful number, since it uses less digits than its factorization.

6345557477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481700 (or 481693 counting only the distinct ones).

The product of its digits is 12348000, while the sum is 53.

The square root of 6345557477 is about 79659.0075069982. The cubic root of 6345557477 is about 1851.3559552175.

The spelling of 6345557477 in words is "six billion, three hundred forty-five million, five hundred fifty-seven thousand, four hundred seventy-seven".