64135253146 has 4 divisors (see below), whose sum is σ = 96202879722. Its totient is φ = 32067626572.

The previous prime is 64135253107. The next prime is 64135253213.

64135253146 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43247777521 + 20887475625 = 207961^2 + 144525^2 .

It is a super-2 number, since 2×64135253146² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64135253099 and 64135253108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16033813285 + ... + 16033813288.

Almost surely, 2^64135253146 is an apocalyptic number.

64135253146 is a deficient number, since it is larger than the sum of its proper divisors (32067626576).

64135253146 is a wasteful number, since it uses less digits than its factorization.

64135253146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32067626575.

The product of its digits is 259200, while the sum is 40.

The spelling of 64135253146 in words is "sixty-four billion, one hundred thirty-five million, two hundred fifty-three thousand, one hundred forty-six".