487791029780 has 12 divisors (see below), whose sum is σ = 1024361162580. Its totient is φ = 195116411904.

The previous prime is 487791029707. The next prime is 487791029809. The reversal of 487791029780 is 87920197784.

It can be written as a sum of positive squares in 2 ways, for example, as 104625077764 + 383165952016 = 323458^2 + 619004^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12194775725 + ... + 12194775764.

It is an arithmetic number, because the mean of its divisors is an integer number (85363430215).

Almost surely, 2^487791029780 is an apocalyptic number.

It is an amenable number.

487791029780 is an abundant number, since it is smaller than the sum of its proper divisors (536570132800).

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

487791029780 is a wasteful number, since it uses less digits than its factorization.

487791029780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24389551498 (or 24389551496 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 62.

The spelling of 487791029780 in words is "four hundred eighty-seven billion, seven hundred ninety-one million, twenty-nine thousand, seven hundred eighty".