2649457542 has 8 divisors (see below), whose sum is σ = 5298915096. Its totient is φ = 883152512.

The previous prime is 2649457537. The next prime is 2649457549. The reversal of 2649457542 is 2457549462.

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

2649457542 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2649457491 and 2649457500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649457549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220788123 + ... + 220788134.

It is an arithmetic number, because the mean of its divisors is an integer number (662364387).

Almost surely, 2^2649457542 is an apocalyptic number.

2649457542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2649457542 is a wasteful number, since it uses less digits than its factorization.

2649457542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441576262.

The product of its digits is 2419200, while the sum is 48.

The square root of 2649457542 is about 51472.8816174109. The cubic root of 2649457542 is about 1383.7330735153.

The spelling of 2649457542 in words is "two billion, six hundred forty-nine million, four hundred fifty-seven thousand, five hundred forty-two".