649224792480 has 384 divisors, whose sum is σ = 2366929797120. Its totient is φ = 147927306240.

The previous prime is 649224792473. The next prime is 649224792497. The reversal of 649224792480 is 84297422946.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 649224792480.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12715162 + ... + 12766118.

It is an arithmetic number, because the mean of its divisors is an integer number (6163879680).

Almost surely, 2^649224792480 is an apocalyptic number.

649224792480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 649224792480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1183464898560).

649224792480 is an abundant number, since it is smaller than the sum of its proper divisors (1717705004640).

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

649224792480 is a wasteful number, since it uses less digits than its factorization.

649224792480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51132 (or 51124 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 57.

The spelling of 649224792480 in words is "six hundred forty-nine billion, two hundred twenty-four million, seven hundred ninety-two thousand, four hundred eighty".