6948376921 has 12 divisors (see below), whose sum is σ = 7204544676. Its totient is φ = 6701014560.

The previous prime is 6948376907. The next prime is 6948376937. The reversal of 6948376921 is 1296738496.

6948376921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6278343696 + 670033225 = 79236^2 + 25885^2 .

It is not a de Polignac number, because 6948376921 - 2¹⁷ = 6948245849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6948376951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269235 + ... + 293911.

It is an arithmetic number, because the mean of its divisors is an integer number (600378723).

Almost surely, 2^6948376921 is an apocalyptic number.

It is an amenable number.

6948376921 is a deficient number, since it is larger than the sum of its proper divisors (256167755).

6948376921 is a wasteful number, since it uses less digits than its factorization.

6948376921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25032 (or 25001 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 55.

The square root of 6948376921 is about 83356.9248533078. The cubic root of 6948376921 is about 1908.2171279205.

The spelling of 6948376921 in words is "six billion, nine hundred forty-eight million, three hundred seventy-six thousand, nine hundred twenty-one".