6880861381 has 4 divisors (see below), whose sum is σ = 7243012000. Its totient is φ = 6518710764.

The previous prime is 6880861357. The next prime is 6880861387. The reversal of 6880861381 is 1831680886.

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 6880861381 - 2⁹ = 6880860869 is a prime.

It is a super-2 number, since 2×6880861381² = 94692506689074454322, which 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 (6880861387) 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, 181075281 + ... + 181075318.

It is an arithmetic number, because the mean of its divisors is an integer number (1810753000).

Almost surely, 2^6880861381 is an apocalyptic number.

It is an amenable number.

6880861381 is a deficient number, since it is larger than the sum of its proper divisors (362150619).

6880861381 is a wasteful number, since it uses less digits than its factorization.

6880861381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362150618.

The product of its (nonzero) digits is 442368, while the sum is 49.

The square root of 6880861381 is about 82950.9576858519. The cubic root of 6880861381 is about 1902.0164539343.

The spelling of 6880861381 in words is "six billion, eight hundred eighty million, eight hundred sixty-one thousand, three hundred eighty-one".