34020772087 has 4 divisors (see below), whose sum is σ = 34338723336. Its totient is φ = 33702820840.

The previous prime is 34020772081. The next prime is 34020772151. The reversal of 34020772087 is 78027702043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78027702043 = 230353 ⋅338731.

It is a cyclic number.

It is not a de Polignac number, because 34020772087 - 2⁷ = 34020771959 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34020772081) 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, 158975464 + ... + 158975677.

It is an arithmetic number, because the mean of its divisors is an integer number (8584680834).

Almost surely, 2^34020772087 is an apocalyptic number.

34020772087 is a deficient number, since it is larger than the sum of its proper divisors (317951249).

34020772087 is a wasteful number, since it uses less digits than its factorization.

34020772087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317951248.

The product of its (nonzero) digits is 131712, while the sum is 40.

The spelling of 34020772087 in words is "thirty-four billion, twenty million, seven hundred seventy-two thousand, eighty-seven".