650887187768442 has 48 divisors (see below), whose sum is σ = 1482804400004928. Its totient is φ = 205945055521920.

The previous prime is 650887187768383. The next prime is 650887187768449. The reversal of 650887187768442 is 244867781788056.

650887187768442 is a `hidden beast` number, since 6 + 508 + 8 + 7 + 1 + 8 + 7 + 7 + 68 + 4 + 42 = 666.

It is a super-2 number, since 2×650887187768442² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (650887187768449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6000675823 + ... + 6000784290.

It is an arithmetic number, because the mean of its divisors is an integer number (30891758333436).

Almost surely, 2^{650887187768442} is an apocalyptic number.

650887187768442 is an abundant number, since it is smaller than the sum of its proper divisors (831917212236486).

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

650887187768442 is a wasteful number, since it uses less digits than its factorization.

650887187768442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12001460275 (or 12001460272 counting only the distinct ones).

The product of its (nonzero) digits is 8092385280, while the sum is 81.

The spelling of 650887187768442 in words is "six hundred fifty trillion, eight hundred eighty-seven billion, one hundred eighty-seven million, seven hundred sixty-eight thousand, four hundred forty-two".