60778807885 has 8 divisors (see below), whose sum is σ = 73044913176. Its totient is φ = 48549483840.

The previous prime is 60778807867. The next prime is 60778807889. The reversal of 60778807885 is 58870887706.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12432473001 + 48346334884 = 111501^2 + 219878^2 .

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

It is not a de Polignac number, because 60778807885 - 2¹¹ = 60778805837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60778807889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9191674 + ... + 9198283.

It is an arithmetic number, because the mean of its divisors is an integer number (9130614147).

Almost surely, 2^60778807885 is an apocalyptic number.

It is an amenable number.

60778807885 is a deficient number, since it is larger than the sum of its proper divisors (12266105291).

60778807885 is a wasteful number, since it uses less digits than its factorization.

60778807885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18390623.

The product of its (nonzero) digits is 42147840, while the sum is 64.

The spelling of 60778807885 in words is "sixty billion, seven hundred seventy-eight million, eight hundred seven thousand, eight hundred eighty-five".