1389060495898 has 4 divisors (see below), whose sum is σ = 2083590743850. Its totient is φ = 694530247948.

The previous prime is 1389060495841. The next prime is 1389060495923. The reversal of 1389060495898 is 8985940609831.

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., 1217749769289 + 171310726609 = 1103517^2 + 413897^2 .

It is a super-2 number, since 2×1389060495898² (a number of 25 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 347265123973 + ... + 347265123976.

Almost surely, 2^{1389060495898} is an apocalyptic number.

1389060495898 is a deficient number, since it is larger than the sum of its proper divisors (694530247952).

1389060495898 is an equidigital number, since it uses as much as digits as its factorization.

1389060495898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694530247951.

The product of its (nonzero) digits is 134369280, while the sum is 70.

The spelling of 1389060495898 in words is "one trillion, three hundred eighty-nine billion, sixty million, four hundred ninety-five thousand, eight hundred ninety-eight".