64750197876 has 384 divisors, whose sum is σ = 200531143680. Its totient is φ = 15801827328.

The previous prime is 64750197773. The next prime is 64750197877. The reversal of 64750197876 is 67879105746.

It is a super-2 number, since 2×64750197876² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64750197877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 85534890 + ... + 85535646.

It is an arithmetic number, because the mean of its divisors is an integer number (522216520).

Almost surely, 2^64750197876 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 64750197876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100265571840).

64750197876 is an abundant number, since it is smaller than the sum of its proper divisors (135780945804).

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

64750197876 is a wasteful number, since it uses less digits than its factorization.

64750197876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923 (or 921 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 60.

The spelling of 64750197876 in words is "sixty-four billion, seven hundred fifty million, one hundred ninety-seven thousand, eight hundred seventy-six".