5681263940 has 48 divisors (see below), whose sum is σ = 13095190080. Its totient is φ = 2053226880.

The previous prime is 5681263919. The next prime is 5681263969. The reversal of 5681263940 is 493621865.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 5681263891 and 5681263900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43355 + ... + 115074.

It is an arithmetic number, because the mean of its divisors is an integer number (272816460).

Almost surely, 2^5681263940 is an apocalyptic number.

It is an amenable number.

5681263940 is an abundant number, since it is smaller than the sum of its proper divisors (7413926140).

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

5681263940 is a wasteful number, since it uses less digits than its factorization.

5681263940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158612 (or 158610 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 5681263940 is about 75374.1596304728. The cubic root of 5681263940 is about 1784.3566157025.

The spelling of 5681263940 in words is "five billion, six hundred eighty-one million, two hundred sixty-three thousand, nine hundred forty".