64877442000 has 320 divisors, whose sum is σ = 240947625984. Its totient is φ = 14711155200.

The previous prime is 64877441977. The next prime is 64877442013. The reversal of 64877442000 is 24477846.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5327919 + ... + 5340081.

Almost surely, 2^64877442000 is an apocalyptic number.

64877442000 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 64877442000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120473812992).

64877442000 is an abundant number, since it is smaller than the sum of its proper divisors (176070183984).

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

64877442000 is a wasteful number, since it uses less digits than its factorization.

64877442000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12323 (or 12307 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 42.

The spelling of 64877442000 in words is "sixty-four billion, eight hundred seventy-seven million, four hundred forty-two thousand".