67867513861 has 4 divisors (see below), whose sum is σ = 77562872992. Its totient is φ = 58172154732.

The previous prime is 67867513829. The next prime is 67867513873. The reversal of 67867513861 is 16831576876.

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 a cyclic number.

It is not a de Polignac number, because 67867513861 - 2⁵ = 67867513829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67867513796 and 67867513805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67867513811) 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, 4847679555 + ... + 4847679568.

It is an arithmetic number, because the mean of its divisors is an integer number (19390718248).

Almost surely, 2^67867513861 is an apocalyptic number.

It is an amenable number.

67867513861 is a deficient number, since it is larger than the sum of its proper divisors (9695359131).

67867513861 is an equidigital number, since it uses as much as digits as its factorization.

67867513861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9695359130.

The product of its digits is 10160640, while the sum is 58.

The spelling of 67867513861 in words is "sixty-seven billion, eight hundred sixty-seven million, five hundred thirteen thousand, eight hundred sixty-one".