581005778380 has 12 divisors (see below), whose sum is σ = 1220112134640. Its totient is φ = 232402311344.

The previous prime is 581005778371. The next prime is 581005778407. The reversal of 581005778380 is 83877500185.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14525144440 + ... + 14525144479.

It is an arithmetic number, because the mean of its divisors is an integer number (101676011220).

Almost surely, 2^581005778380 is an apocalyptic number.

It is an amenable number.

581005778380 is an abundant number, since it is smaller than the sum of its proper divisors (639106356260).

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

581005778380 is a wasteful number, since it uses less digits than its factorization.

581005778380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29050288928 (or 29050288926 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 52.

The spelling of 581005778380 in words is "five hundred eighty-one billion, five million, seven hundred seventy-eight thousand, three hundred eighty".