12542067620 has 24 divisors (see below), whose sum is σ = 26341111104. Its totient is φ = 5016299616.

The previous prime is 12542067607. The next prime is 12542067623. The reversal of 12542067620 is 2676024521.

It is not an unprimeable number, because it can be changed into a prime (12542067623) 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, 203339 + ... + 257741.

It is an arithmetic number, because the mean of its divisors is an integer number (1097546296).

Almost surely, 2^12542067620 is an apocalyptic number.

12542067620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12542067620 is an abundant number, since it is smaller than the sum of its proper divisors (13799043484).

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

12542067620 is a wasteful number, since it uses less digits than its factorization.

12542067620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65939 (or 65937 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 12542067620 in words is "twelve billion, five hundred forty-two million, sixty-seven thousand, six hundred twenty".