649716843048 has 128 divisors (see below), whose sum is σ = 2019738981120. Its totient is φ = 169587302400.

The previous prime is 649716843043. The next prime is 649716843089. The reversal of 649716843048 is 840348617946.

It is a super-2 number, since 2×649716843048² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 649716842982 and 649716843000.

It is not an unprimeable number, because it can be changed into a prime (649716843043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1321603 + ... + 1745298.

It is an arithmetic number, because the mean of its divisors is an integer number (15779210790).

Almost surely, 2^649716843048 is an apocalyptic number.

It is an amenable number.

649716843048 is an abundant number, since it is smaller than the sum of its proper divisors (1370022138072).

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

649716843048 is a wasteful number, since it uses less digits than its factorization.

649716843048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067027 (or 3067023 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 60.

The spelling of 649716843048 in words is "six hundred forty-nine billion, seven hundred sixteen million, eight hundred forty-three thousand, forty-eight".