642601541308 has 12 divisors (see below), whose sum is σ = 1126290804912. Its totient is φ = 320804168480.

The previous prime is 642601541297. The next prime is 642601541333. The reversal of 642601541308 is 803145106246.

It is a happy number.

It is a congruent number.

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, 124147633 + ... + 124152808.

It is an arithmetic number, because the mean of its divisors is an integer number (93857567076).

Almost surely, 2^642601541308 is an apocalyptic number.

It is an amenable number.

642601541308 is a deficient number, since it is larger than the sum of its proper divisors (483689263604).

642601541308 is a wasteful number, since it uses less digits than its factorization.

642601541308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248301092 (or 248301090 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 642601541308 in words is "six hundred forty-two billion, six hundred one million, five hundred forty-one thousand, three hundred eight".