64615214534 has 16 divisors (see below), whose sum is σ = 107977680720. Its totient is φ = 28794047520.

The previous prime is 64615214533. The next prime is 64615214537. The reversal of 64615214534 is 43541251646.

It is a junction number, because it is equal to n+sod(n) for n = 64615214491 and 64615214500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64615214533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42847532 + ... + 42849039.

It is an arithmetic number, because the mean of its divisors is an integer number (6748605045).

Almost surely, 2^64615214534 is an apocalyptic number.

64615214534 is a deficient number, since it is larger than the sum of its proper divisors (43362466186).

64615214534 is a wasteful number, since it uses less digits than its factorization.

64615214534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85696615.

The product of its digits is 345600, while the sum is 41.

The spelling of 64615214534 in words is "sixty-four billion, six hundred fifteen million, two hundred fourteen thousand, five hundred thirty-four".