12261573402 has 32 divisors (see below), whose sum is σ = 26857172160. Its totient is φ = 3708844800.

The previous prime is 12261573361. The next prime is 12261573413. The reversal of 12261573402 is 20437516221.

12261573402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1327599 + ... + 1336802.

It is an arithmetic number, because the mean of its divisors is an integer number (839286630).

Almost surely, 2^12261573402 is an apocalyptic number.

12261573402 is an abundant number, since it is smaller than the sum of its proper divisors (14595598758).

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

12261573402 is a wasteful number, since it uses less digits than its factorization.

12261573402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664478.

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 12261573402 in words is "twelve billion, two hundred sixty-one million, five hundred seventy-three thousand, four hundred two".