2545446642 has 32 divisors (see below), whose sum is σ = 5307185664. Its totient is φ = 812976000.

The previous prime is 2545446637. The next prime is 2545446661. The reversal of 2545446642 is 2466445452.

It is a junction number, because it is equal to n+sod(n) for n = 2545446594 and 2545446603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48963 + ... + 86534.

It is an arithmetic number, because the mean of its divisors is an integer number (165849552).

Almost surely, 2^2545446642 is an apocalyptic number.

2545446642 is an abundant number, since it is smaller than the sum of its proper divisors (2761739022).

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

2545446642 is a wasteful number, since it uses less digits than its factorization.

2545446642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135634.

The product of its digits is 921600, while the sum is 42.

The square root of 2545446642 is about 50452.4195851894. The cubic root of 2545446642 is about 1365.3835490487.

The spelling of 2545446642 in words is "two billion, five hundred forty-five million, four hundred forty-six thousand, six hundred forty-two".