2456647728 has 40 divisors (see below), whose sum is σ = 6441069888. Its totient is φ = 806659392.

The previous prime is 2456647727. The next prime is 2456647759. The reversal of 2456647728 is 8277466542.

It is not an unprimeable number, because it can be changed into a prime (2456647727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378726 + ... + 385157.

Almost surely, 2^2456647728 is an apocalyptic number.

It is an amenable number.

2456647728 is an abundant number, since it is smaller than the sum of its proper divisors (3984422160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2456647728 is a wasteful number, since it uses less digits than its factorization.

2456647728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763961 (or 763955 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 51.

The square root of 2456647728 is about 49564.5813863085. The cubic root of 2456647728 is about 1349.3179413335.

The spelling of 2456647728 in words is "two billion, four hundred fifty-six million, six hundred forty-seven thousand, seven hundred twenty-eight".