649691283192 has 256 divisors, whose sum is σ = 1890577920000. Its totient is φ = 182236096512.

The previous prime is 649691283191. The next prime is 649691283193. The reversal of 649691283192 is 291382196946.

It is an interprime number because it is at equal distance from previous prime (649691283191) and next prime (649691283193).

It is a super-3 number, since 3×649691283192³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649691283191) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1770275793 + ... + 1770276159.

It is an arithmetic number, because the mean of its divisors is an integer number (7385070000).

Almost surely, 2^649691283192 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 649691283192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (945288960000).

649691283192 is an abundant number, since it is smaller than the sum of its proper divisors (1240886636808).

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

649691283192 is a wasteful number, since it uses less digits than its factorization.

649691283192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118 (or 1114 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 60.

The spelling of 649691283192 in words is "six hundred forty-nine billion, six hundred ninety-one million, two hundred eighty-three thousand, one hundred ninety-two".