64783146760 has 16 divisors (see below), whose sum is σ = 145762080300. Its totient is φ = 25913258688.

The previous prime is 64783146733. The next prime is 64783146761. The reversal of 64783146760 is 6764138746.

It can be written as a sum of positive squares in 2 ways, for example, as 59011098084 + 5772048676 = 242922^2 + 75974^2 .

It is a super-2 number, since 2×64783146760² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64783146698 and 64783146707.

It is not an unprimeable number, because it can be changed into a prime (64783146761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809789295 + ... + 809789374.

Almost surely, 2^64783146760 is an apocalyptic number.

It is an amenable number.

64783146760 is an abundant number, since it is smaller than the sum of its proper divisors (80978933540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64783146760 is a wasteful number, since it uses less digits than its factorization.

64783146760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619578680 (or 1619578676 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 64783146760 in words is "sixty-four billion, seven hundred eighty-three million, one hundred forty-six thousand, seven hundred sixty".