649286136000 has 504 divisors, whose sum is σ = 2428120522464. Its totient is φ = 165605299200.

The previous prime is 649286135941. The next prime is 649286136007. The reversal of 649286136000 is 631682946.

649286136000 is a `hidden beast` number, since 6 + 4 + 9 + 28 + 6 + 13 + 600 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (649286136007) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 38079477 + ... + 38096523.

Almost surely, 2^649286136000 is an apocalyptic number.

649286136000 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 649286136000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1214060261232).

649286136000 is an abundant number, since it is smaller than the sum of its proper divisors (1778834386464).

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

649286136000 is a wasteful number, since it uses less digits than its factorization.

649286136000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17126 (or 17080 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 649286136000 in words is "six hundred forty-nine billion, two hundred eighty-six million, one hundred thirty-six thousand".