649359097742 has 8 divisors (see below), whose sum is σ = 1025303838600. Its totient is φ = 307591151544.

The previous prime is 649359097733. The next prime is 649359097763. The reversal of 649359097742 is 247790953946.

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

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, 8544198617 + ... + 8544198692.

It is an arithmetic number, because the mean of its divisors is an integer number (128162979825).

Almost surely, 2^649359097742 is an apocalyptic number.

649359097742 is a deficient number, since it is larger than the sum of its proper divisors (375944740858).

649359097742 is a wasteful number, since it uses less digits than its factorization.

649359097742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17088397330.

The product of its (nonzero) digits is 102876480, while the sum is 65.

The spelling of 649359097742 in words is "six hundred forty-nine billion, three hundred fifty-nine million, ninety-seven thousand, seven hundred forty-two".