64938373080 has 192 divisors, whose sum is σ = 227195059680. Its totient is φ = 14805504000.

The previous prime is 64938373079. The next prime is 64938373133. The reversal of 64938373080 is 8037383946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2344110 + ... + 2371650.

Almost surely, 2^64938373080 is an apocalyptic number.

64938373080 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 64938373080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113597529840).

64938373080 is an abundant number, since it is smaller than the sum of its proper divisors (162256686600).

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

64938373080 is a wasteful number, since it uses less digits than its factorization.

64938373080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27970 (or 27959 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 64938373080 in words is "sixty-four billion, nine hundred thirty-eight million, three hundred seventy-three thousand, eighty".