15212423684316 has 72 divisors (see below), whose sum is σ = 36543805917696. Its totient is φ = 4925032367840.

The previous prime is 15212423684309. The next prime is 15212423684321. The reversal of 15212423684316 is 61348632421251.

It is a happy number.

It is a super-2 number, since 2×15212423684316² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1282165 + ... + 5662931.

It is an arithmetic number, because the mean of its divisors is an integer number (507552859968).

Almost surely, 2^{15212423684316} is an apocalyptic number.

It is an amenable number.

15212423684316 is an abundant number, since it is smaller than the sum of its proper divisors (21331382233380).

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

15212423684316 is a wasteful number, since it uses less digits than its factorization.

15212423684316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4380999 (or 4380950 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 48.

The spelling of 15212423684316 in words is "fifteen trillion, two hundred twelve billion, four hundred twenty-three million, six hundred eighty-four thousand, three hundred sixteen".