12625353540 has 72 divisors (see below), whose sum is σ = 38315204928. Its totient is φ = 3365152320.

The previous prime is 12625353523. The next prime is 12625353547. The reversal of 12625353540 is 4535352621.

12625353540 is a `hidden beast` number, since 1 + 2 + 62 + 5 + 3 + 53 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12625353495 and 12625353504.

It is not an unprimeable number, because it can be changed into a prime (12625353547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 388105 + ... + 419375.

It is an arithmetic number, because the mean of its divisors is an integer number (532155624).

Almost surely, 2^12625353540 is an apocalyptic number.

12625353540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12625353540 is an abundant number, since it is smaller than the sum of its proper divisors (25689851388).

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

12625353540 is a wasteful number, since it uses less digits than its factorization.

12625353540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33529 (or 33524 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 12625353540 in words is "twelve billion, six hundred twenty-five million, three hundred fifty-three thousand, five hundred forty".