23277420146 has 4 divisors (see below), whose sum is σ = 34916130222. Its totient is φ = 11638710072.

The previous prime is 23277420139. The next prime is 23277420149. The reversal of 23277420146 is 64102477232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13729980625 + 9547439521 = 117175^2 + 97711^2 .

It is a super-2 number, since 2×23277420146² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23277420149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5819355035 + ... + 5819355038.

Almost surely, 2^23277420146 is an apocalyptic number.

23277420146 is a deficient number, since it is larger than the sum of its proper divisors (11638710076).

23277420146 is a wasteful number, since it uses less digits than its factorization.

23277420146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11638710075.

The product of its (nonzero) digits is 112896, while the sum is 38.

Adding to 23277420146 its reverse (64102477232), we get a palindrome (87379897378).

The spelling of 23277420146 in words is "twenty-three billion, two hundred seventy-seven million, four hundred twenty thousand, one hundred forty-six".