42996925449 has 9 divisors (see below), whose sum is σ = 62107568653. Its totient is φ = 28664202252.

The previous prime is 42996925403. The next prime is 42996925469. The reversal of 42996925449 is 94452969924.

The square root of 42996925449 is 207357.

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

42996925449 is a `hidden beast` number, since 4 + 29 + 9 + 69 + 2 + 544 + 9 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 42996925449 - 2¹⁵ = 42996892681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42996925469) 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, 587512 + ... + 656630.

Almost surely, 2^42996925449 is an apocalyptic number.

42996925449 is the 207357-th square number.

42996925449 is the 103679-th centered octagonal number.

It is an amenable number.

42996925449 is a deficient number, since it is larger than the sum of its proper divisors (19110643204).

42996925449 is an frugal number, since it uses more digits than its factorization.

42996925449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138244 (or 69122 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 63.

The spelling of 42996925449 in words is "forty-two billion, nine hundred ninety-six million, nine hundred twenty-five thousand, four hundred forty-nine".