234278661386 has 32 divisors (see below), whose sum is σ = 438164328960. Its totient is φ = 91270566000.

The previous prime is 234278661347. The next prime is 234278661389. The reversal of 234278661386 is 683166872432.

It is not an unprimeable number, because it can be changed into a prime (234278661389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2330225 + ... + 2428683.

It is an arithmetic number, because the mean of its divisors is an integer number (13692635280).

Almost surely, 2^234278661386 is an apocalyptic number.

234278661386 is a deficient number, since it is larger than the sum of its proper divisors (203885667574).

234278661386 is a wasteful number, since it uses less digits than its factorization.

234278661386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113930.

The product of its digits is 13934592, while the sum is 56.

The spelling of 234278661386 in words is "two hundred thirty-four billion, two hundred seventy-eight million, six hundred sixty-one thousand, three hundred eighty-six".