1355678423125 has 20 divisors (see below), whose sum is σ = 1824367749820. Its totient is φ = 1001116368000.

The previous prime is 1355678423101. The next prime is 1355678423129. The reversal of 1355678423125 is 5213248765531.

It can be written as a sum of positive squares in 10 ways, for example, as 1211113456036 + 144564967089 = 1100506^2 + 380217^2 .

It is not a de Polignac number, because 1355678423125 - 2¹⁵ = 1355678390357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355678423129) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 83418240 + ... + 83434489.

It is an arithmetic number, because the mean of its divisors is an integer number (91218387491).

Almost surely, 2^{1355678423125} is an apocalyptic number.

It is an amenable number.

1355678423125 is a deficient number, since it is larger than the sum of its proper divisors (468689326695).

1355678423125 is an equidigital number, since it uses as much as digits as its factorization.

1355678423125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166852762 (or 166852747 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 52.

The spelling of 1355678423125 in words is "one trillion, three hundred fifty-five billion, six hundred seventy-eight million, four hundred twenty-three thousand, one hundred twenty-five".