6268078721 has 16 divisors (see below), whose sum is σ = 6831201024. Its totient is φ = 5727262464.

The previous prime is 6268078693. The next prime is 6268078727. The reversal of 6268078721 is 1278708626.

It is not a de Polignac number, because 6268078721 - 2²⁶ = 6200969857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6268078727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280466 + ... + 301988.

It is an arithmetic number, because the mean of its divisors is an integer number (426950064).

Almost surely, 2^6268078721 is an apocalyptic number.

It is an amenable number.

6268078721 is a deficient number, since it is larger than the sum of its proper divisors (563122303).

6268078721 is a wasteful number, since it uses less digits than its factorization.

6268078721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22040.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 6268078721 is about 79171.1988099208. The cubic root of 6268078721 is about 1843.7901083206.

The spelling of 6268078721 in words is "six billion, two hundred sixty-eight million, seventy-eight thousand, seven hundred twenty-one".