12344567890 has 64 divisors (see below), whose sum is σ = 23192114400. Its totient is φ = 4726757376.

The previous prime is 12344567849. The next prime is 12344567923. The reversal of 12344567890 is 9876544321.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 1360060641 + 10984507249 = 36879^2 + 104807^2 .

It is a super-3 number, since 3×12344567890³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7540152 + ... + 7541788.

It is a 2-persistent number, because it is pandigital, and so is 2⋅12344567890 = 24689135780, but 3⋅12344567890 = 37033703670 is not.

Almost surely, 2^12344567890 is an apocalyptic number.

12344567890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12344567890 is a deficient number, since it is larger than the sum of its proper divisors (10847546510).

12344567890 is a wasteful number, since it uses less digits than its factorization.

12344567890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 12344567890 in words is "twelve billion, three hundred forty-four million, five hundred sixty-seven thousand, eight hundred ninety".