64123941234 has 16 divisors (see below), whose sum is σ = 128266744320. Its totient is φ = 21371503440.

The previous prime is 64123941191. The next prime is 64123941253. The reversal of 64123941234 is 43214932146.

It is a happy number.

It is a super-2 number, since 2×64123941234² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64123941192 and 64123941201.

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, 741522 + ... + 823469.

It is an arithmetic number, because the mean of its divisors is an integer number (8016671520).

Almost surely, 2^64123941234 is an apocalyptic number.

64123941234 is an abundant number, since it is smaller than the sum of its proper divisors (64142803086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64123941234 is a wasteful number, since it uses less digits than its factorization.

64123941234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571825.

The product of its digits is 124416, while the sum is 39.

The spelling of 64123941234 in words is "sixty-four billion, one hundred twenty-three million, nine hundred forty-one thousand, two hundred thirty-four".