987789253343 has 32 divisors (see below), whose sum is σ = 1062334310400. Its totient is φ = 916212328416.

The previous prime is 987789253337. The next prime is 987789253351. The reversal of 987789253343 is 343352987789.

It is a cyclic number.

It is not a de Polignac number, because 987789253343 - 2¹⁸ = 987788991199 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 (987789253313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116659196 + ... + 116667662.

It is an arithmetic number, because the mean of its divisors is an integer number (33197947200).

Almost surely, 2^987789253343 is an apocalyptic number.

987789253343 is a deficient number, since it is larger than the sum of its proper divisors (74545057057).

987789253343 is a wasteful number, since it uses less digits than its factorization.

987789253343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9371.

The product of its digits is 274337280, while the sum is 68.

The spelling of 987789253343 in words is "nine hundred eighty-seven billion, seven hundred eighty-nine million, two hundred fifty-three thousand, three hundred forty-three".