1542357834889 has 9 divisors (see below), whose sum is σ = 1549465508941. Its totient is φ = 1535282633740.

The previous prime is 1542357834821. The next prime is 1542357834929. The reversal of 1542357834889 is 9884387532451.

The square root of 1542357834889 is 1241917.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-1542357834889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1542357814889) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 281912424 + ... + 281917894.

Almost surely, 2^{1542357834889} is an apocalyptic number.

1542357834889 is the 1241917-th square number.

1542357834889 is the 620959-th centered octagonal number.

It is an amenable number.

1542357834889 is a deficient number, since it is larger than the sum of its proper divisors (7107674052).

1542357834889 is an frugal number, since it uses more digits than its factorization.

1542357834889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11396 (or 5698 counting only the distinct ones).

The product of its digits is 232243200, while the sum is 67.

The spelling of 1542357834889 in words is "one trillion, five hundred forty-two billion, three hundred fifty-seven million, eight hundred thirty-four thousand, eight hundred eighty-nine".