641612072242 has 32 divisors (see below), whose sum is σ = 1026959150592. Its totient is φ = 299939749824.

The previous prime is 641612072239. The next prime is 641612072317. The reversal of 641612072242 is 242270216146.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1479268 + ... + 1863184.

It is an arithmetic number, because the mean of its divisors is an integer number (32092473456).

Almost surely, 2^641612072242 is an apocalyptic number.

641612072242 is a deficient number, since it is larger than the sum of its proper divisors (385347078350).

641612072242 is a wasteful number, since it uses less digits than its factorization.

641612072242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384762.

The product of its (nonzero) digits is 64512, while the sum is 37.

Adding to 641612072242 its reverse (242270216146), we get a palindrome (883882288388).

The spelling of 641612072242 in words is "six hundred forty-one billion, six hundred twelve million, seventy-two thousand, two hundred forty-two".