41647421929 has 9 divisors (see below), whose sum is σ = 42139005573. Its totient is φ = 41161514592.

The previous prime is 41647421927. The next prime is 41647421957. The reversal of 41647421929 is 92912474614.

The square root of 41647421929 is 204077.

It is a perfect power (a square), and thus also a powerful number.

41647421929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11319896025 + 30327525904 = 106395^2 + 174148^2 .

It is not a de Polignac number, because 41647421929 - 2¹ = 41647421927 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41647421927) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18161707 + ... + 18163999.

Almost surely, 2^41647421929 is an apocalyptic number.

41647421929 is the 204077-th square number.

41647421929 is the 102039-th centered octagonal number.

It is an amenable number.

41647421929 is a deficient number, since it is larger than the sum of its proper divisors (491583644).

41647421929 is an frugal number, since it uses more digits than its factorization.

41647421929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4764 (or 2382 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

Multiplying 41647421929 by its sum of digits (49), we get a square (2040723674521 = 1428539²).

The spelling of 41647421929 in words is "forty-one billion, six hundred forty-seven million, four hundred twenty-one thousand, nine hundred twenty-nine".