4257644280732 has 96 divisors (see below), whose sum is σ = 11147566080000. Its totient is φ = 1405215858816.

The previous prime is 4257644280713. The next prime is 4257644280889. The reversal of 4257644280732 is 2370824467524.

4257644280732 is a `hidden beast` number, since 4 + 2 + 57 + 6 + 442 + 80 + 73 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6533248 + ... + 7155320.

It is an arithmetic number, because the mean of its divisors is an integer number (116120480000).

Almost surely, 2^{4257644280732} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4257644280732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5573783040000).

4257644280732 is an abundant number, since it is smaller than the sum of its proper divisors (6889921799268).

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

4257644280732 is a wasteful number, since it uses less digits than its factorization.

4257644280732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622712 (or 622704 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 54.

The spelling of 4257644280732 in words is "four trillion, two hundred fifty-seven billion, six hundred forty-four million, two hundred eighty thousand, seven hundred thirty-two".