60720877477 has 6 divisors (see below), whose sum is σ = 65751009522. Its totient is φ = 56050040592.

The previous prime is 60720877453. The next prime is 60720877487. The reversal of 60720877477 is 77477802706.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1018081 + 60719859396 = 1009^2 + 246414^2 .

It is not a de Polignac number, because 60720877477 - 2¹¹ = 60720875429 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 (60720877487) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 179647398 + ... + 179647735.

It is an arithmetic number, because the mean of its divisors is an integer number (10958501587).

Almost surely, 2^60720877477 is an apocalyptic number.

It is an amenable number.

60720877477 is a deficient number, since it is larger than the sum of its proper divisors (5030132045).

60720877477 is a wasteful number, since it uses less digits than its factorization.

60720877477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359295159 (or 359295146 counting only the distinct ones).

The product of its (nonzero) digits is 6453888, while the sum is 55.

The spelling of 60720877477 in words is "sixty billion, seven hundred twenty million, eight hundred seventy-seven thousand, four hundred seventy-seven".