57780282750 has 64 divisors (see below), whose sum is σ = 146583957312. Its totient is φ = 15155472000.

The previous prime is 57780282719. The next prime is 57780282767. The reversal of 57780282750 is 5728208775.

It is a super-2 number, since 2×57780282750² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57780282693 and 57780282702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 585729 + ... + 677228.

It is an arithmetic number, because the mean of its divisors is an integer number (2290374333).

Almost surely, 2^57780282750 is an apocalyptic number.

57780282750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57780282750 is an abundant number, since it is smaller than the sum of its proper divisors (88803674562).

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

57780282750 is a wasteful number, since it uses less digits than its factorization.

57780282750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263038 (or 1263028 counting only the distinct ones).

The product of its (nonzero) digits is 2195200, while the sum is 51.

The spelling of 57780282750 in words is "fifty-seven billion, seven hundred eighty million, two hundred eighty-two thousand, seven hundred fifty".