64897630562 has 8 divisors (see below), whose sum is σ = 97347760092. Its totient is φ = 32448377200.

The previous prime is 64897630559. The next prime is 64897630571. The reversal of 64897630562 is 26503679846.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60186318241 + 4711312321 = 245329^2 + 68639^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 64897630498 and 64897630507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17012 + ... + 360672.

Almost surely, 2^64897630562 is an apocalyptic number.

64897630562 is a deficient number, since it is larger than the sum of its proper divisors (32450129530).

64897630562 is a wasteful number, since it uses less digits than its factorization.

64897630562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438084.

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 64897630562 in words is "sixty-four billion, eight hundred ninety-seven million, six hundred thirty thousand, five hundred sixty-two".