2911397678 has 16 divisors (see below), whose sum is σ = 4991985504. Its totient is φ = 1247487360.

The previous prime is 2911397663. The next prime is 2911397681. The reversal of 2911397678 is 8767931192.

2911397678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60818 + ... + 97578.

It is an arithmetic number, because the mean of its divisors is an integer number (311999094).

Almost surely, 2^2911397678 is an apocalyptic number.

2911397678 is a deficient number, since it is larger than the sum of its proper divisors (2080587826).

2911397678 is a wasteful number, since it uses less digits than its factorization.

2911397678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42427.

The product of its digits is 1143072, while the sum is 53.

The square root of 2911397678 is about 53957.3690796725. The cubic root of 2911397678 is about 1427.9089326045.

The spelling of 2911397678 in words is "two billion, nine hundred eleven million, three hundred ninety-seven thousand, six hundred seventy-eight".