12765406142 has 32 divisors (see below), whose sum is σ = 19858535424. Its totient is φ = 6150623200.

The previous prime is 12765406103. The next prime is 12765406231. The reversal of 12765406142 is 24160456721.

It is a happy number.

It is a super-2 number, since 2×12765406142² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12765406096 and 12765406105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2423792 + ... + 2429052.

It is an arithmetic number, because the mean of its divisors is an integer number (620579232).

Almost surely, 2^12765406142 is an apocalyptic number.

12765406142 is a deficient number, since it is larger than the sum of its proper divisors (7093129282).

12765406142 is a wasteful number, since it uses less digits than its factorization.

12765406142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5704.

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 12765406142 in words is "twelve billion, seven hundred sixty-five million, four hundred six thousand, one hundred forty-two".