64531344313546 has 64 divisors (see below), whose sum is σ = 107672845104000. Its totient is φ = 28758975436800.

The previous prime is 64531344313537. The next prime is 64531344313679.

64531344313546 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 64531344313493 and 64531344313502.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 524374630 + ... + 524497678.

It is an arithmetic number, because the mean of its divisors is an integer number (1682388204750).

Almost surely, 2^{64531344313546} is an apocalyptic number.

64531344313546 is a deficient number, since it is larger than the sum of its proper divisors (43141500790454).

64531344313546 is a wasteful number, since it uses less digits than its factorization.

64531344313546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124375.

The product of its digits is 18662400, while the sum is 52.

The spelling of 64531344313546 in words is "sixty-four trillion, five hundred thirty-one billion, three hundred forty-four million, three hundred thirteen thousand, five hundred forty-six".