68053570709439 has 16 divisors (see below), whose sum is σ = 103700805990912. Its totient is φ = 38887707135648.

The previous prime is 68053570709437. The next prime is 68053570709447. The reversal of 68053570709439 is 93490707535086.

It is not a de Polignac number, because 68053570709439 - 2¹ = 68053570709437 is a prime.

It is a super-2 number, since 2×68053570709439² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68053570709439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68053570709437) 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, 22817977 + ... + 25627469.

It is an arithmetic number, because the mean of its divisors is an integer number (6481300374432).

Almost surely, 2^{68053570709439} is an apocalyptic number.

68053570709439 is a deficient number, since it is larger than the sum of its proper divisors (35647235281473).

68053570709439 is a wasteful number, since it uses less digits than its factorization.

68053570709439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3962966.

The product of its (nonzero) digits is 171460800, while the sum is 66.

The spelling of 68053570709439 in words is "sixty-eight trillion, fifty-three billion, five hundred seventy million, seven hundred nine thousand, four hundred thirty-nine".