2134775678 has 16 divisors (see below), whose sum is σ = 3744723840. Its totient is φ = 893626776.

The previous prime is 2134775677. The next prime is 2134775681. The reversal of 2134775678 is 8765774312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134775677) 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, 1772468 + ... + 1773671.

It is an arithmetic number, because the mean of its divisors is an integer number (234045240).

Almost surely, 2^2134775678 is an apocalyptic number.

2134775678 is a deficient number, since it is larger than the sum of its proper divisors (1609948162).

2134775678 is a wasteful number, since it uses less digits than its factorization.

2134775678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546191.

The product of its digits is 1975680, while the sum is 50.

The square root of 2134775678 is about 46203.6327359657. The cubic root of 2134775678 is about 1287.6092325459.

The spelling of 2134775678 in words is "two billion, one hundred thirty-four million, seven hundred seventy-five thousand, six hundred seventy-eight".