64379691420192 has 576 divisors, whose sum is σ = 198087192576000. Its totient is φ = 19761604853760.

The previous prime is 64379691420179. The next prime is 64379691420199. The reversal of 64379691420192 is 29102419697346.

64379691420192 is a `hidden beast` number, since 6 + 4 + 37 + 9 + 6 + 91 + 420 + 1 + 92 = 666.

It is not an unprimeable number, because it can be changed into a prime (64379691420199) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24847428817 + ... + 24847431407.

It is an arithmetic number, because the mean of its divisors is an integer number (343901376000).

Almost surely, 2^{64379691420192} 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 64379691420192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99043596288000).

64379691420192 is an abundant number, since it is smaller than the sum of its proper divisors (133707501155808).

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

64379691420192 is a wasteful number, since it uses less digits than its factorization.

64379691420192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3289 (or 3278 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 63.

The spelling of 64379691420192 in words is "sixty-four trillion, three hundred seventy-nine billion, six hundred ninety-one million, four hundred twenty thousand, one hundred ninety-two".