34020668772 has 36 divisors (see below), whose sum is σ = 86137034620. Its totient is φ = 11321716032.

The previous prime is 34020668729. The next prime is 34020668777. The reversal of 34020668772 is 27786602043.

It can be written as a sum of positive squares in 2 ways, for example, as 12799754496 + 21220914276 = 113136^2 + 145674^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (34020668777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 748747 + ... + 792882.

Almost surely, 2^34020668772 is an apocalyptic number.

It is an amenable number.

34020668772 is an abundant number, since it is smaller than the sum of its proper divisors (52116365848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34020668772 is a wasteful number, since it uses less digits than its factorization.

34020668772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542252 (or 1542247 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 34020668772 in words is "thirty-four billion, twenty million, six hundred sixty-eight thousand, seven hundred seventy-two".