1521000068 has 24 divisors (see below), whose sum is σ = 3043928832. Its totient is φ = 651443904.

The previous prime is 1521000067. The next prime is 1521000077. The reversal of 1521000068 is 8600001251.

It is not an unprimeable number, because it can be changed into a prime (1521000067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30005 + ... + 62787.

It is an arithmetic number, because the mean of its divisors is an integer number (126830368).

Almost surely, 2^1521000068 is an apocalyptic number.

It is an amenable number.

1521000068 is an abundant number, since it is smaller than the sum of its proper divisors (1522928764).

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

1521000068 is a wasteful number, since it uses less digits than its factorization.

1521000068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34451 (or 34449 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1521000068 is about 39000.0008717949. Note that the first 3 decimals coincide. The cubic root of 1521000068 is about 1150.0315222613.

The spelling of 1521000068 in words is "one billion, five hundred twenty-one million, sixty-eight", and thus it is an aban number.