67939933551 has 16 divisors (see below), whose sum is σ = 103534274304. Its totient is φ = 38820285504.

The previous prime is 67939933549. The next prime is 67939933559. The reversal of 67939933551 is 15533993976.

It is not a de Polignac number, because 67939933551 - 2¹ = 67939933549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67939933559) 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, 252040 + ... + 446546.

It is an arithmetic number, because the mean of its divisors is an integer number (6470892144).

Almost surely, 2^67939933551 is an apocalyptic number.

67939933551 is a deficient number, since it is larger than the sum of its proper divisors (35594340753).

67939933551 is a wasteful number, since it uses less digits than its factorization.

67939933551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211150.

The product of its digits is 20667150, while the sum is 60.

The spelling of 67939933551 in words is "sixty-seven billion, nine hundred thirty-nine million, nine hundred thirty-three thousand, five hundred fifty-one".