67868011381 has 4 divisors (see below), whose sum is σ = 71440012000. Its totient is φ = 64296010764.

The previous prime is 67868011363. The next prime is 67868011399. The reversal of 67868011381 is 18311086876.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (67868011363) and next prime (67868011399).

It is a cyclic number.

It is not a de Polignac number, because 67868011381 - 2¹⁷ = 67867880309 is a prime.

It is a super-2 number, since 2×67868011381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67868011301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1786000281 + ... + 1786000318.

It is an arithmetic number, because the mean of its divisors is an integer number (17860003000).

Almost surely, 2^67868011381 is an apocalyptic number.

It is an amenable number.

67868011381 is a deficient number, since it is larger than the sum of its proper divisors (3572000619).

67868011381 is a wasteful number, since it uses less digits than its factorization.

67868011381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572000618.

The product of its (nonzero) digits is 387072, while the sum is 49.

The spelling of 67868011381 in words is "sixty-seven billion, eight hundred sixty-eight million, eleven thousand, three hundred eighty-one".