999147385351 has 8 divisors (see below), whose sum is σ = 1003709999600. Its totient is φ = 994586506560.

The previous prime is 999147385339. The next prime is 999147385409. The reversal of 999147385351 is 153583741999.

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 999147385351 - 2¹⁷ = 999147254279 is a prime.

It is a super-3 number, since 3×999147385351³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999147385321) 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, 727291 + ... + 1589731.

It is an arithmetic number, because the mean of its divisors is an integer number (125463749950).

Almost surely, 2^999147385351 is an apocalyptic number.

999147385351 is a deficient number, since it is larger than the sum of its proper divisors (4562614249).

999147385351 is a wasteful number, since it uses less digits than its factorization.

999147385351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867729.

The product of its digits is 36741600, while the sum is 64.

The spelling of 999147385351 in words is "nine hundred ninety-nine billion, one hundred forty-seven million, three hundred eighty-five thousand, three hundred fifty-one".