12642900834 has 16 divisors (see below), whose sum is σ = 25337729088. Its totient is φ = 4205645712.

The previous prime is 12642900811. The next prime is 12642900839. The reversal of 12642900834 is 43800924621.

It is a junction number, because it is equal to n+sod(n) for n = 12642900792 and 12642900801.

It is not an unprimeable number, because it can be changed into a prime (12642900839) 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, 2160477 + ... + 2166320.

It is an arithmetic number, because the mean of its divisors is an integer number (1583608068).

Almost surely, 2^12642900834 is an apocalyptic number.

12642900834 is an abundant number, since it is smaller than the sum of its proper divisors (12694828254).

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

12642900834 is a wasteful number, since it uses less digits than its factorization.

12642900834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4327289.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 12642900834 in words is "twelve billion, six hundred forty-two million, nine hundred thousand, eight hundred thirty-four".