1081687579466 has 8 divisors (see below), whose sum is σ = 1747341474564. Its totient is φ = 499240421280.

The previous prime is 1081687579459. The next prime is 1081687579481. The reversal of 1081687579466 is 6649757861801.

It can be written as a sum of positive squares in 2 ways, for example, as 1070614437025 + 11073142441 = 1034705^2 + 105229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1081687579396 and 1081687579405.

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, 20801684195 + ... + 20801684246.

Almost surely, 2^{1081687579466} is an apocalyptic number.

1081687579466 is a deficient number, since it is larger than the sum of its proper divisors (665653895098).

1081687579466 is a wasteful number, since it uses less digits than its factorization.

1081687579466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41603368456.

The product of its (nonzero) digits is 121927680, while the sum is 68.

The spelling of 1081687579466 in words is "one trillion, eighty-one billion, six hundred eighty-seven million, five hundred seventy-nine thousand, four hundred sixty-six".