67148239653 has 20 divisors (see below), whose sum is σ = 109426762368. Its totient is φ = 40695902280.

The previous prime is 67148239607. The next prime is 67148239681. The reversal of 67148239653 is 35693284176.

67148239653 is a `hidden beast` number, since 6 + 71 + 482 + 3 + 96 + 5 + 3 = 666.

67148239653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 67148239653 - 2¹³ = 67148231461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67148239653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67148239453) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37680501 + ... + 37682282.

Almost surely, 2^67148239653 is an apocalyptic number.

It is an amenable number.

67148239653 is a deficient number, since it is larger than the sum of its proper divisors (42278522715).

67148239653 is a wasteful number, since it uses less digits than its factorization.

67148239653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75362806 (or 75362797 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 67148239653 in words is "sixty-seven billion, one hundred forty-eight million, two hundred thirty-nine thousand, six hundred fifty-three".