3068978640 has 160 divisors (see below), whose sum is σ = 11709417216. Its totient is φ = 647516160.

The previous prime is 3068978593. The next prime is 3068978659. The reversal of 3068978640 is 468798603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48421 + ... + 92100.

Almost surely, 2^3068978640 is an apocalyptic number.

3068978640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3068978640 is an abundant number, since it is smaller than the sum of its proper divisors (8640438576).

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

3068978640 is a wasteful number, since it uses less digits than its factorization.

3068978640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140557 (or 140551 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 3068978640 is about 55398.3631527142. The cubic root of 3068978640 is about 1453.2197402076.

The spelling of 3068978640 in words is "three billion, sixty-eight million, nine hundred seventy-eight thousand, six hundred forty".