1381577906558 has 8 divisors (see below), whose sum is σ = 2074273364352. Its totient is φ = 690153451776.

The previous prime is 1381577906519. The next prime is 1381577906573. The reversal of 1381577906558 is 8556097751831.

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 = 1381577906494 and 1381577906503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317748035 + ... + 317752382.

It is an arithmetic number, because the mean of its divisors is an integer number (259284170544).

Almost surely, 2^{1381577906558} is an apocalyptic number.

1381577906558 is a deficient number, since it is larger than the sum of its proper divisors (692695457794).

1381577906558 is a wasteful number, since it uses less digits than its factorization.

1381577906558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635501506.

The product of its (nonzero) digits is 63504000, while the sum is 65.

The spelling of 1381577906558 in words is "one trillion, three hundred eighty-one billion, five hundred seventy-seven million, nine hundred six thousand, five hundred fifty-eight".