581378310748 has 12 divisors (see below), whose sum is σ = 1017418451112. Its totient is φ = 290687324720.

The previous prime is 581378310731. The next prime is 581378310749. The reversal of 581378310748 is 847013873185.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (581378310749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462411 + ... + 1173277.

It is an arithmetic number, because the mean of its divisors is an integer number (84784870926).

Almost surely, 2^581378310748 is an apocalyptic number.

It is an amenable number.

581378310748 is a deficient number, since it is larger than the sum of its proper divisors (436040140364).

581378310748 is a wasteful number, since it uses less digits than its factorization.

581378310748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915332 (or 915330 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 581378310748 in words is "five hundred eighty-one billion, three hundred seventy-eight million, three hundred ten thousand, seven hundred forty-eight".