1015729812108 has 144 divisors (see below), whose sum is σ = 2930932027296. Its totient is φ = 293827322880.

The previous prime is 1015729812049. The next prime is 1015729812151. The reversal of 1015729812108 is 8012189275101.

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 47 ways as a sum of consecutive naturals, for example, 122560 + ... + 1430552.

It is an arithmetic number, because the mean of its divisors is an integer number (20353694634).

Almost surely, 2^{1015729812108} is an apocalyptic number.

1015729812108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1015729812108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1465466013648).

1015729812108 is an abundant number, since it is smaller than the sum of its proper divisors (1915202215188).

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

1015729812108 is a wasteful number, since it uses less digits than its factorization.

1015729812108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308104 (or 1308099 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 45.

The spelling of 1015729812108 in words is "one trillion, fifteen billion, seven hundred twenty-nine million, eight hundred twelve thousand, one hundred eight".