64123523234 has 16 divisors (see below), whose sum is σ = 97140401280. Its totient is φ = 31743526080.

The previous prime is 64123523221. The next prime is 64123523249. The reversal of 64123523234 is 43232532146.

It is a happy number.

64123523234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64123523234² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64123523194 and 64123523203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981674 + ... + 1044954.

It is an arithmetic number, because the mean of its divisors is an integer number (6071275080).

Almost surely, 2^64123523234 is an apocalyptic number.

64123523234 is a deficient number, since it is larger than the sum of its proper divisors (33016878046).

64123523234 is a wasteful number, since it uses less digits than its factorization.

64123523234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68305.

The product of its digits is 103680, while the sum is 35.

The spelling of 64123523234 in words is "sixty-four billion, one hundred twenty-three million, five hundred twenty-three thousand, two hundred thirty-four".