2134918777 has 2 divisors, whose sum is σ = 2134918778. Its totient is φ = 2134918776.

The previous prime is 2134918763. The next prime is 2134918817. The reversal of 2134918777 is 7778194312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1260179001 + 874739776 = 35499^2 + 29576^2 .

It is a cyclic number.

It is not a de Polignac number, because 2134918777 - 2⁷ = 2134918649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2134918777.

It is not a weakly prime, because it can be changed into another prime (2134918727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067459388 + 1067459389.

It is an arithmetic number, because the mean of its divisors is an integer number (1067459389).

Almost surely, 2^2134918777 is an apocalyptic number.

It is an amenable number.

2134918777 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134918777 is an equidigital number, since it uses as much as digits as its factorization.

2134918777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 49.

The square root of 2134918777 is about 46205.1812787267. The cubic root of 2134918777 is about 1287.6380023879.

The spelling of 2134918777 in words is "two billion, one hundred thirty-four million, nine hundred eighteen thousand, seven hundred seventy-seven".