64941294144 has 224 divisors, whose sum is σ = 185021890560. Its totient is φ = 20049942528.

The previous prime is 64941294133. The next prime is 64941294163. The reversal of 64941294144 is 44149214946.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 64941294093 and 64941294102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39049857 + ... + 39051519.

Almost surely, 2^64941294144 is an apocalyptic number.

64941294144 is a gapful number since it is divisible by the number (64) 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 64941294144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92510945280).

64941294144 is an abundant number, since it is smaller than the sum of its proper divisors (120080596416).

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

64941294144 is a wasteful number, since it uses less digits than its factorization.

64941294144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977 (or 1967 counting only the distinct ones).

The product of its digits is 995328, while the sum is 48.

The spelling of 64941294144 in words is "sixty-four billion, nine hundred forty-one million, two hundred ninety-four thousand, one hundred forty-four".