2178711423 has 48 divisors (see below), whose sum is σ = 3719229696. Its totient is φ = 1203108480.

The previous prime is 2178711419. The next prime is 2178711481. The reversal of 2178711423 is 3241178712.

2178711423 is a `hidden beast` number, since 217 + 8 + 7 + 11 + 423 = 666.

It is not a de Polignac number, because 2178711423 - 2² = 2178711419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2178711023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 272440 + ... + 280322.

It is an arithmetic number, because the mean of its divisors is an integer number (77483952).

Almost surely, 2^2178711423 is an apocalyptic number.

2178711423 is a deficient number, since it is larger than the sum of its proper divisors (1540518273).

2178711423 is a wasteful number, since it uses less digits than its factorization.

2178711423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8044 (or 8041 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 2178711423 is about 46676.6689364183. The cubic root of 2178711423 is about 1296.3827298266.

The spelling of 2178711423 in words is "two billion, one hundred seventy-eight million, seven hundred eleven thousand, four hundred twenty-three".