60687404557 has 16 divisors (see below), whose sum is σ = 67501023408. Its totient is φ = 54209226240.

The previous prime is 60687404549. The next prime is 60687404563. The reversal of 60687404557 is 75540478606.

It can be written as a sum of positive squares in 8 ways, for example, as 630060201 + 60057344356 = 25101^2 + 245066^2 .

It is not a de Polignac number, because 60687404557 - 2³ = 60687404549 is a prime.

It is a super-2 number, since 2×60687404557² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60687404507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 552994 + ... + 653587.

It is an arithmetic number, because the mean of its divisors is an integer number (4218813963).

Almost surely, 2^60687404557 is an apocalyptic number.

It is an amenable number.

60687404557 is a deficient number, since it is larger than the sum of its proper divisors (6813618851).

60687404557 is a wasteful number, since it uses less digits than its factorization.

60687404557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206720.

The product of its (nonzero) digits is 5644800, while the sum is 52.

The spelling of 60687404557 in words is "sixty billion, six hundred eighty-seven million, four hundred four thousand, five hundred fifty-seven".