12542953530 has 16 divisors (see below), whose sum is σ = 30103088544. Its totient is φ = 3344787600.

The previous prime is 12542953523. The next prime is 12542953543. The reversal of 12542953530 is 3535924521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209049196 + ... + 209049255.

It is an arithmetic number, because the mean of its divisors is an integer number (1881443034).

Almost surely, 2^12542953530 is an apocalyptic number.

12542953530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12542953530 is an abundant number, since it is smaller than the sum of its proper divisors (17560135014).

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

12542953530 is a wasteful number, since it uses less digits than its factorization.

12542953530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418098461.

The product of its (nonzero) digits is 162000, while the sum is 39.

The spelling of 12542953530 in words is "twelve billion, five hundred forty-two million, nine hundred fifty-three thousand, five hundred thirty".