64863429401 has 4 divisors (see below), whose sum is σ = 64864044900. Its totient is φ = 64862813904.

The previous prime is 64863429377. The next prime is 64863429427. The reversal of 64863429401 is 10492436846.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10492436846 = 2 ⋅5246218423.

It can be written as a sum of positive squares in 2 ways, for example, as 48443569801 + 16419859600 = 220099^2 + 128140^2 .

It is a cyclic number.

It is not a de Polignac number, because 64863429401 - 2²² = 64859235097 is a prime.

It is a super-2 number, since 2×64863429401² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64863429431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105266 + ... + 375243.

It is an arithmetic number, because the mean of its divisors is an integer number (16216011225).

Almost surely, 2^64863429401 is an apocalyptic number.

It is an amenable number.

64863429401 is a deficient number, since it is larger than the sum of its proper divisors (615499).

64863429401 is a wasteful number, since it uses less digits than its factorization.

64863429401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615498.

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 64863429401 in words is "sixty-four billion, eight hundred sixty-three million, four hundred twenty-nine thousand, four hundred one".