34720642068 has 72 divisors (see below), whose sum is σ = 94302264672. Its totient is φ = 9913813056.

The previous prime is 34720642063. The next prime is 34720642093. The reversal of 34720642068 is 86024602743.

It is a super-2 number, since 2×34720642068² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34720642063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 938530 + ... + 974822.

It is an arithmetic number, because the mean of its divisors is an integer number (1309753676).

Almost surely, 2^34720642068 is an apocalyptic number.

It is an amenable number.

34720642068 is an abundant number, since it is smaller than the sum of its proper divisors (59581622604).

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

34720642068 is a wasteful number, since it uses less digits than its factorization.

34720642068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37941 (or 37932 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 34720642068 in words is "thirty-four billion, seven hundred twenty million, six hundred forty-two thousand, sixty-eight".