12140347816 has 8 divisors (see below), whose sum is σ = 22763152170. Its totient is φ = 6070173904.

The previous prime is 12140347799. The next prime is 12140347823. The reversal of 12140347816 is 61874304121.

It can be written as a sum of positive squares in only one way, i.e., 11203375716 + 936972100 = 105846^2 + 30610^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 758771731 + ... + 758771746.

Almost surely, 2^12140347816 is an apocalyptic number.

It is an amenable number.

12140347816 is a deficient number, since it is larger than the sum of its proper divisors (10622804354).

12140347816 is a wasteful number, since it uses less digits than its factorization.

12140347816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517543483 (or 1517543479 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 12140347816 in words is "twelve billion, one hundred forty million, three hundred forty-seven thousand, eight hundred sixteen".