5644634642 has 8 divisors (see below), whose sum is σ = 8472759600. Its totient is φ = 2820381444.

The previous prime is 5644634621. The next prime is 5644634669. The reversal of 5644634642 is 2464364465.

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

It is a junction number, because it is equal to n+sod(n) for n = 5644634593 and 5644634602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 964292 + ... + 970127.

It is an arithmetic number, because the mean of its divisors is an integer number (1059094950).

Almost surely, 2^5644634642 is an apocalyptic number.

5644634642 is a deficient number, since it is larger than the sum of its proper divisors (2828124958).

5644634642 is a wasteful number, since it uses less digits than its factorization.

5644634642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935880.

The product of its digits is 1658880, while the sum is 44.

The square root of 5644634642 is about 75130.7835843604. The cubic root of 5644634642 is about 1780.5135329736.

The spelling of 5644634642 in words is "five billion, six hundred forty-four million, six hundred thirty-four thousand, six hundred forty-two".