34155324021 has 36 divisors (see below), whose sum is σ = 57364157952. Its totient is φ = 18015981984.

The previous prime is 34155324017. The next prime is 34155324037. The reversal of 34155324021 is 12042355143.

It is not a de Polignac number, because 34155324021 - 2² = 34155324017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34155324021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34155324041) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 662581 + ... + 712266.

It is an arithmetic number, because the mean of its divisors is an integer number (1593448832).

Almost surely, 2^34155324021 is an apocalyptic number.

It is an amenable number.

34155324021 is a deficient number, since it is larger than the sum of its proper divisors (23208833931).

34155324021 is a wasteful number, since it uses less digits than its factorization.

34155324021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374890 (or 1374870 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 34155324021 its reverse (12042355143), we get a palindrome (46197679164).

The spelling of 34155324021 in words is "thirty-four billion, one hundred fifty-five million, three hundred twenty-four thousand, twenty-one".