649801624488 has 32 divisors (see below), whose sum is σ = 1625913067200. Its totient is φ = 216412674048.

The previous prime is 649801624471. The next prime is 649801624517. The reversal of 649801624488 is 884426108946.

It is a super-2 number, since 2×649801624488² (a number of 24 digits) contains 22 as substring.

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, 11713468 + ... + 11768811.

It is an arithmetic number, because the mean of its divisors is an integer number (50809783350).

Almost surely, 2^649801624488 is an apocalyptic number.

It is an amenable number.

649801624488 is an abundant number, since it is smaller than the sum of its proper divisors (976111442712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649801624488 is a wasteful number, since it uses less digits than its factorization.

649801624488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23483441 (or 23483437 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 60.

The spelling of 649801624488 in words is "six hundred forty-nine billion, eight hundred one million, six hundred twenty-four thousand, four hundred eighty-eight".