67536061839 has 6 divisors (see below), whose sum is σ = 97552089336. Its totient is φ = 45024041220.

The previous prime is 67536061787. The next prime is 67536061961. The reversal of 67536061839 is 93816063576.

67536061839 is a `hidden beast` number, since 67 + 536 + 0 + 6 + 18 + 39 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-67536061839 is a prime.

It is a super-2 number, since 2×67536061839² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67536061639) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3752003427 + ... + 3752003444.

It is an arithmetic number, because the mean of its divisors is an integer number (16258681556).

Almost surely, 2^67536061839 is an apocalyptic number.

67536061839 is a deficient number, since it is larger than the sum of its proper divisors (30016027497).

67536061839 is a wasteful number, since it uses less digits than its factorization.

67536061839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7504006877 (or 7504006874 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 67536061839 in words is "sixty-seven billion, five hundred thirty-six million, sixty-one thousand, eight hundred thirty-nine".