12901784925 has 24 divisors (see below), whose sum is σ = 22585715136. Its totient is φ = 6476189440.

The previous prime is 12901784911. The next prime is 12901784963. The reversal of 12901784925 is 52948710921.

It is a happy number.

It is not a de Polignac number, because 12901784925 - 2¹⁰ = 12901783901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5058249 + ... + 5060798.

It is an arithmetic number, because the mean of its divisors is an integer number (941071464).

Almost surely, 2^12901784925 is an apocalyptic number.

12901784925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12901784925 is a deficient number, since it is larger than the sum of its proper divisors (9683930211).

12901784925 is a wasteful number, since it uses less digits than its factorization.

12901784925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10119077 (or 10119072 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 48.

The spelling of 12901784925 in words is "twelve billion, nine hundred one million, seven hundred eighty-four thousand, nine hundred twenty-five".