879684662381 has 4 divisors (see below), whose sum is σ = 1005353899872. Its totient is φ = 754015424892.

The previous prime is 879684662341. The next prime is 879684662399. The reversal of 879684662381 is 183266486978.

879684662381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 183266486978 = 2 ⋅91633243489.

It is a cyclic number.

It is not a de Polignac number, because 879684662381 - 2²² = 879680468077 is a prime.

It is a super-2 number, since 2×879684662381² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879684662341) 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, 62834618735 + ... + 62834618748.

It is an arithmetic number, because the mean of its divisors is an integer number (251338474968).

Almost surely, 2^879684662381 is an apocalyptic number.

It is an amenable number.

879684662381 is a deficient number, since it is larger than the sum of its proper divisors (125669237491).

879684662381 is a wasteful number, since it uses less digits than its factorization.

879684662381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125669237490.

The product of its digits is 167215104, while the sum is 68.

The spelling of 879684662381 in words is "eight hundred seventy-nine billion, six hundred eighty-four million, six hundred sixty-two thousand, three hundred eighty-one".