60667138249 has 9 divisors (see below), whose sum is σ = 63425445223. Its totient is φ = 58024017832.

The previous prime is 60667138223. The next prime is 60667138253. The reversal of 60667138249 is 94283176606.

The square root of 60667138249 is 246307.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 58422273849 + 2244864400 = 241707^2 + 47380^2 .

It is not a de Polignac number, because 60667138249 - 2⁷ = 60667138121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 60667138196 and 60667138205.

It is not an unprimeable number, because it can be changed into a prime (60667138219) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5659707 + ... + 5670415.

Almost surely, 2^60667138249 is an apocalyptic number.

60667138249 is the 246307-th square number.

60667138249 is the 123154-th centered octagonal number.

It is an amenable number.

60667138249 is a deficient number, since it is larger than the sum of its proper divisors (2758306974).

60667138249 is an frugal number, since it uses more digits than its factorization.

60667138249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21464 (or 10732 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

It can be divided in two parts, 60667 and 138249, that added together give a square (198916 = 446²).

The spelling of 60667138249 in words is "sixty billion, six hundred sixty-seven million, one hundred thirty-eight thousand, two hundred forty-nine".