18344961506252 has 6 divisors (see below), whose sum is σ = 32103682635948. Its totient is φ = 9172480753124.

The previous prime is 18344961506251. The next prime is 18344961506297. The reversal of 18344961506252 is 25260516944381.

It is a super-2 number, since 2×18344961506252² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18344961506251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2293120188278 + ... + 2293120188285.

It is an arithmetic number, because the mean of its divisors is an integer number (5350613772658).

Almost surely, 2^{18344961506252} is an apocalyptic number.

It is an amenable number.

18344961506252 is a deficient number, since it is larger than the sum of its proper divisors (13758721129696).

18344961506252 is a wasteful number, since it uses less digits than its factorization.

18344961506252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4586240376567 (or 4586240376565 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 18344961506252 in words is "eighteen trillion, three hundred forty-four billion, nine hundred sixty-one million, five hundred six thousand, two hundred fifty-two".