1902874428589 has 8 divisors (see below), whose sum is σ = 2063949883128. Its totient is φ = 1747259159040.

The previous prime is 1902874428563. The next prime is 1902874428613. The reversal of 1902874428589 is 9858244782091.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 457909356100 + 1444965072489 = 676690^2 + 1202067^2 .

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 1902874428589 - 2⁷ = 1902874428461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1902874428289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1365045522 + ... + 1365046915.

It is an arithmetic number, because the mean of its divisors is an integer number (257993735391).

Almost surely, 2^{1902874428589} is an apocalyptic number.

It is an amenable number.

1902874428589 is a deficient number, since it is larger than the sum of its proper divisors (161075454539).

1902874428589 is a wasteful number, since it uses less digits than its factorization.

1902874428589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730092495.

The product of its (nonzero) digits is 92897280, while the sum is 67.

The spelling of 1902874428589 in words is "one trillion, nine hundred two billion, eight hundred seventy-four million, four hundred twenty-eight thousand, five hundred eighty-nine".