1068512621 has 8 divisors (see below), whose sum is σ = 1169954688. Its totient is φ = 967788000.

The previous prime is 1068512581. The next prime is 1068512623. The reversal of 1068512621 is 1262158601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1068512621 is a prime.

It is a super-2 number, since 2×1068512621² = 2283438442472579282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068512623) 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, 176240 + ... + 182201.

It is an arithmetic number, because the mean of its divisors is an integer number (146244336).

Almost surely, 2^1068512621 is an apocalyptic number.

1068512621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1068512621 is a deficient number, since it is larger than the sum of its proper divisors (101442067).

1068512621 is a wasteful number, since it uses less digits than its factorization.

1068512621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358723.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 1068512621 is about 32688.1113097713. Note that the first 3 decimals coincide. The cubic root of 1068512621 is about 1022.3349752705.

The spelling of 1068512621 in words is "one billion, sixty-eight million, five hundred twelve thousand, six hundred twenty-one".