5462781840 has 120 divisors (see below), whose sum is σ = 18480087288. Its totient is φ = 1446082560.

The previous prime is 5462781833. The next prime is 5462781859. The reversal of 5462781840 is 481872645.

5462781840 is a `hidden beast` number, since 5 + 4 + 627 + 8 + 18 + 4 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2010984336 + 3451797504 = 44844^2 + 58752^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70950 + ... + 126330.

Almost surely, 2^5462781840 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 5462781840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9240043644).

5462781840 is an abundant number, since it is smaller than the sum of its proper divisors (13017305448).

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

5462781840 is a wasteful number, since it uses less digits than its factorization.

5462781840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55537 (or 55528 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The square root of 5462781840 is about 73910.6341469210. The cubic root of 5462781840 is about 1761.1835444900.

The spelling of 5462781840 in words is "five billion, four hundred sixty-two million, seven hundred eighty-one thousand, eight hundred forty".