487661578237322 has 4 divisors (see below), whose sum is σ = 731492367355986. Its totient is φ = 243830789118660.

The previous prime is 487661578237307. The next prime is 487661578237357. The reversal of 487661578237322 is 223732875166784.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 467104521985201 + 20557056252121 = 21612601^2 + 4533989^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121915394559329 + ... + 121915394559332.

Almost surely, 2^{487661578237322} is an apocalyptic number.

487661578237322 is a deficient number, since it is larger than the sum of its proper divisors (243830789118664).

487661578237322 is a wasteful number, since it uses less digits than its factorization.

487661578237322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243830789118663.

The product of its digits is 1137991680, while the sum is 71.

The spelling of 487661578237322 in words is "four hundred eighty-seven trillion, six hundred sixty-one billion, five hundred seventy-eight million, two hundred thirty-seven thousand, three hundred twenty-two".