64012549367669 has 16 divisors (see below), whose sum is σ = 74858915429760. Its totient is φ = 53591625501120.

The previous prime is 64012549367651. The next prime is 64012549367791. The reversal of 64012549367669 is 96676394521046.

It is not a de Polignac number, because 64012549367669 - 2²⁴ = 64012532590453 is a prime.

It is a super-2 number, since 2×64012549367669² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64012549367599 and 64012549367608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64012549367609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75366179 + ... + 76210799.

It is an arithmetic number, because the mean of its divisors is an integer number (4678682214360).

Almost surely, 2^{64012549367669} is an apocalyptic number.

It is an amenable number.

64012549367669 is a deficient number, since it is larger than the sum of its proper divisors (10846366062091).

64012549367669 is a wasteful number, since it uses less digits than its factorization.

64012549367669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096460.

The product of its (nonzero) digits is 352719360, while the sum is 68.

The spelling of 64012549367669 in words is "sixty-four trillion, twelve billion, five hundred forty-nine million, three hundred sixty-seven thousand, six hundred sixty-nine".