68407272853901 has 2 divisors, whose sum is σ = 68407272853902. Its totient is φ = 68407272853900.

The previous prime is 68407272853873. The next prime is 68407272853921. The reversal of 68407272853901 is 10935827270486.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66711159936100 + 1696112917801 = 8167690^2 + 1302349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68407272853901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68407272853921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34203636426950 + 34203636426951.

It is an arithmetic number, because the mean of its divisors is an integer number (34203636426951).

It is a 1-persistent number, because it is pandigital, but 2⋅68407272853901 = 136814545707802 is not.

Almost surely, 2^{68407272853901} is an apocalyptic number.

It is an amenable number.

68407272853901 is a deficient number, since it is larger than the sum of its proper divisors (1).

68407272853901 is an equidigital number, since it uses as much as digits as its factorization.

68407272853901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40642560, while the sum is 62.

The spelling of 68407272853901 in words is "sixty-eight trillion, four hundred seven billion, two hundred seventy-two million, eight hundred fifty-three thousand, nine hundred one".