60777681821 has 8 divisors (see below), whose sum is σ = 63982720320. Its totient is φ = 57573264672.

The previous prime is 60777681817. The next prime is 60777681827. The reversal of 60777681821 is 12818677706.

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

It is a cyclic number.

It is not a de Polignac number, because 60777681821 - 2² = 60777681817 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 (60777681827) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 52601 + ... + 352593.

It is an arithmetic number, because the mean of its divisors is an integer number (7997840040).

Almost surely, 2^60777681821 is an apocalyptic number.

It is an amenable number.

60777681821 is a deficient number, since it is larger than the sum of its proper divisors (3205038499).

60777681821 is a wasteful number, since it uses less digits than its factorization.

60777681821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310675.

The product of its (nonzero) digits is 1580544, while the sum is 53.

The spelling of 60777681821 in words is "sixty billion, seven hundred seventy-seven million, six hundred eighty-one thousand, eight hundred twenty-one".