64136450463 has 8 divisors (see below), whose sum is σ = 87334741248. Its totient is φ = 41847896664.

The previous prime is 64136450459. The next prime is 64136450503. The reversal of 64136450463 is 36405463146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64136450463 - 2² = 64136450459 is a prime.

It is a super-2 number, since 2×64136450463² (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 (64136450263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227434081 + ... + 227434362.

It is an arithmetic number, because the mean of its divisors is an integer number (10916842656).

Almost surely, 2^64136450463 is an apocalyptic number.

64136450463 is a deficient number, since it is larger than the sum of its proper divisors (23198290785).

64136450463 is a wasteful number, since it uses less digits than its factorization.

64136450463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454868493.

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 64136450463 in words is "sixty-four billion, one hundred thirty-six million, four hundred fifty thousand, four hundred sixty-three".