3644641249922 has 16 divisors (see below), whose sum is σ = 5499918353952. Its totient is φ = 1811351043840.

The previous prime is 3644641249877. The next prime is 3644641250057. The reversal of 3644641249922 is 2299421464463.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3519104 + ... + 4435467.

It is an arithmetic number, because the mean of its divisors is an integer number (343744897122).

Almost surely, 2^{3644641249922} is an apocalyptic number.

3644641249922 is a deficient number, since it is larger than the sum of its proper divisors (1855277104030).

3644641249922 is a wasteful number, since it uses less digits than its factorization.

3644641249922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7955953.

The product of its digits is 17915904, while the sum is 56.

The spelling of 3644641249922 in words is "three trillion, six hundred forty-four billion, six hundred forty-one million, two hundred forty-nine thousand, nine hundred twenty-two".