34378187881 has 8 divisors (see below), whose sum is σ = 35310279744. Its totient is φ = 33446251440.

The previous prime is 34378187873. The next prime is 34378187923. The reversal of 34378187881 is 18878187343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34378187881 - 2³ = 34378187873 is a prime.

It is a super-2 number, since 2×34378187881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34378187801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515076 + ... + 577978.

It is an arithmetic number, because the mean of its divisors is an integer number (4413784968).

Almost surely, 2^34378187881 is an apocalyptic number.

It is an amenable number.

34378187881 is a deficient number, since it is larger than the sum of its proper divisors (932091863).

34378187881 is a wasteful number, since it uses less digits than its factorization.

34378187881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77711.

The product of its digits is 7225344, while the sum is 58.

The spelling of 34378187881 in words is "thirty-four billion, three hundred seventy-eight million, one hundred eighty-seven thousand, eight hundred eighty-one".