64712241502818 has 32 divisors (see below), whose sum is σ = 159291671392896. Its totient is φ = 17066964791808.

The previous prime is 64712241502781. The next prime is 64712241502901. The reversal of 64712241502818 is 81820514221746.

It is a super-2 number, since 2×64712241502818² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59260293871 + ... + 59260294962.

It is an arithmetic number, because the mean of its divisors is an integer number (4977864731028).

Almost surely, 2^{64712241502818} is an apocalyptic number.

64712241502818 is an abundant number, since it is smaller than the sum of its proper divisors (94579429890078).

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

64712241502818 is a wasteful number, since it uses less digits than its factorization.

64712241502818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118520588858.

The product of its (nonzero) digits is 1720320, while the sum is 51.

The spelling of 64712241502818 in words is "sixty-four trillion, seven hundred twelve billion, two hundred forty-one million, five hundred two thousand, eight hundred eighteen".