60645430778 has 4 divisors (see below), whose sum is σ = 90968146170. Its totient is φ = 30322715388.

The previous prime is 60645430771. The next prime is 60645430817. The reversal of 60645430778 is 87703454606.

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., 47246673769 + 13398757009 = 217363^2 + 115753^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (60645430771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15161357693 + ... + 15161357696.

Almost surely, 2^60645430778 is an apocalyptic number.

60645430778 is a deficient number, since it is larger than the sum of its proper divisors (30322715392).

60645430778 is a wasteful number, since it uses less digits than its factorization.

60645430778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30322715391.

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 60645430778 in words is "sixty billion, six hundred forty-five million, four hundred thirty thousand, seven hundred seventy-eight".