649982097902592 has 528 divisors, whose sum is σ = 2310103325001472. Its totient is φ = 171410172641280.

The previous prime is 649982097902573. The next prime is 649982097902639. The reversal of 649982097902592 is 295209790289946.

649982097902592 is a `hidden beast` number, since 6 + 4 + 9 + 98 + 209 + 79 + 0 + 259 + 2 = 666.

It is a Smith number, since the sum of its digits (81) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14648782167 + ... + 14648826537.

Almost surely, 2^{649982097902592} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 649982097902592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1155051662500736).

649982097902592 is an abundant number, since it is smaller than the sum of its proper divisors (1660121227098880).

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

649982097902592 is a wasteful number, since it uses less digits than its factorization.

649982097902592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61884 (or 61863 counting only the distinct ones).

The product of its (nonzero) digits is 3174474240, while the sum is 81.

The spelling of 649982097902592 in words is "six hundred forty-nine trillion, nine hundred eighty-two billion, ninety-seven million, nine hundred two thousand, five hundred ninety-two".