34878853991 has 8 divisors (see below), whose sum is σ = 35218735104. Its totient is φ = 34540611480.

The previous prime is 34878853967. The next prime is 34878853993. The reversal of 34878853991 is 19935887843.

34878853991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 34878853991 - 2¹⁴ = 34878837607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34878853993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366851 + ... + 452036.

It is an arithmetic number, because the mean of its divisors is an integer number (4402341888).

Almost surely, 2^34878853991 is an apocalyptic number.

34878853991 is a deficient number, since it is larger than the sum of its proper divisors (339881113).

34878853991 is a wasteful number, since it uses less digits than its factorization.

34878853991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819301.

The product of its digits is 52254720, while the sum is 65.

The spelling of 34878853991 in words is "thirty-four billion, eight hundred seventy-eight million, eight hundred fifty-three thousand, nine hundred ninety-one".