34042153721 has 8 divisors (see below), whose sum is σ = 35887954944. Its totient is φ = 32243081760.

The previous prime is 34042153687. The next prime is 34042153771. The reversal of 34042153721 is 12735124043.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34042153721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34042153771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11680820 + ... + 11683733.

It is an arithmetic number, because the mean of its divisors is an integer number (4485994368).

Almost surely, 2^34042153721 is an apocalyptic number.

34042153721 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

34042153721 is a deficient number, since it is larger than the sum of its proper divisors (1845801223).

34042153721 is a wasteful number, since it uses less digits than its factorization.

34042153721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23364631.

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 34042153721 its reverse (12735124043), we get a palindrome (46777277764).

The spelling of 34042153721 in words is "thirty-four billion, forty-two million, one hundred fifty-three thousand, seven hundred twenty-one".