1787428125353 has 8 divisors (see below), whose sum is σ = 1924982627400. Its totient is φ = 1649882199168.

The previous prime is 1787428125347. The next prime is 1787428125359. The reversal of 1787428125353 is 3535218247871.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1787428125347) and next prime (1787428125359).

It can be written as a sum of positive squares in 4 ways, for example, as 462933273664 + 1324494851689 = 680392^2 + 1150867^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1787428125353 - 2⁸ = 1787428125097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1787428125359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1707788 + ... + 2547821.

It is an arithmetic number, because the mean of its divisors is an integer number (240622828425).

Almost surely, 2^{1787428125353} is an apocalyptic number.

1787428125353 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1787428125353 is a deficient number, since it is larger than the sum of its proper divisors (137554502047).

1787428125353 is a wasteful number, since it uses less digits than its factorization.

1787428125353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4287931.

The product of its digits is 11289600, while the sum is 56.

The spelling of 1787428125353 in words is "one trillion, seven hundred eighty-seven billion, four hundred twenty-eight million, one hundred twenty-five thousand, three hundred fifty-three".