6457232872 has 8 divisors (see below), whose sum is σ = 12107311650. Its totient is φ = 3228616432.

The previous prime is 6457232863. The next prime is 6457232891. The reversal of 6457232872 is 2782327546.

It can be written as a sum of positive squares in only one way, i.e., 5769010116 + 688222756 = 75954^2 + 26234^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403577047 + ... + 403577062.

Almost surely, 2^6457232872 is an apocalyptic number.

It is an amenable number.

6457232872 is a deficient number, since it is larger than the sum of its proper divisors (5650078778).

6457232872 is a wasteful number, since it uses less digits than its factorization.

6457232872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807154115 (or 807154111 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 46.

The square root of 6457232872 is about 80356.9092984542. The cubic root of 6457232872 is about 1862.1535229375.

The spelling of 6457232872 in words is "six billion, four hundred fifty-seven million, two hundred thirty-two thousand, eight hundred seventy-two".