2351289312 has 144 divisors (see below), whose sum is σ = 7154233632. Its totient is φ = 729907200.

The previous prime is 2351289307. The next prime is 2351289323. The reversal of 2351289312 is 2139821532.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×2351289312² = 11057122857450866688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 472437 + ... + 477387.

It is an arithmetic number, because the mean of its divisors is an integer number (49682178).

Almost surely, 2^2351289312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2351289312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3577116816).

2351289312 is an abundant number, since it is smaller than the sum of its proper divisors (4802944320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2351289312 is a wasteful number, since it uses less digits than its factorization.

2351289312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5081 (or 5070 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 2351289312 is about 48490.0949885644. The cubic root of 2351289312 is about 1329.7459917804.

The spelling of 2351289312 in words is "two billion, three hundred fifty-one million, two hundred eighty-nine thousand, three hundred twelve".