634440002342061 has 16 divisors (see below), whose sum is σ = 861421713868800. Its totient is φ = 415228547581488.

The previous prime is 634440002342009. The next prime is 634440002342129. The reversal of 634440002342061 is 160243200044436.

It is not a de Polignac number, because 634440002342061 - 2¹⁴ = 634440002325677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634440002342761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2425042941 + ... + 2425304546.

It is an arithmetic number, because the mean of its divisors is an integer number (53838857116800).

Almost surely, 2^{634440002342061} is an apocalyptic number.

It is an amenable number.

634440002342061 is a deficient number, since it is larger than the sum of its proper divisors (226981711526739).

634440002342061 is a wasteful number, since it uses less digits than its factorization.

634440002342061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850348288.

The product of its (nonzero) digits is 331776, while the sum is 39.

Adding to 634440002342061 its reverse (160243200044436), we get a palindrome (794683202386497).

The spelling of 634440002342061 in words is "six hundred thirty-four trillion, four hundred forty billion, two million, three hundred forty-two thousand, sixty-one".