642612662098 has 16 divisors (see below), whose sum is σ = 1061375547744. Its totient is φ = 289366788160.

The previous prime is 642612662089. The next prime is 642612662099. The reversal of 642612662098 is 890266216246.

It is not an unprimeable number, because it can be changed into a prime (642612662099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136491415 + ... + 136496122.

It is an arithmetic number, because the mean of its divisors is an integer number (66335971734).

Almost surely, 2^642612662098 is an apocalyptic number.

642612662098 is a deficient number, since it is larger than the sum of its proper divisors (418762885646).

642612662098 is a wasteful number, since it uses less digits than its factorization.

642612662098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272987657.

The product of its (nonzero) digits is 2985984, while the sum is 52.

It can be divided in two parts, 64 and 2612662098, that added together give a palindrome (2612662162).

The spelling of 642612662098 in words is "six hundred forty-two billion, six hundred twelve million, six hundred sixty-two thousand, ninety-eight".