68744870920197 has 12 divisors (see below), whose sum is σ = 104524365142080. Its totient is φ = 43417813212648.

The previous prime is 68744870920181. The next prime is 68744870920213. The reversal of 68744870920197 is 79102907844786.

68744870920197 is a `hidden beast` number, since 6 + 8 + 7 + 448 + 7 + 0 + 92 + 0 + 1 + 97 = 666.

It is an interprime number because it is at equal distance from previous prime (68744870920181) and next prime (68744870920213).

It is not a de Polignac number, because 68744870920197 - 2⁴ = 68744870920181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68744870920097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201008394333 + ... + 201008394674.

It is an arithmetic number, because the mean of its divisors is an integer number (8710363761840).

Almost surely, 2^{68744870920197} is an apocalyptic number.

It is an amenable number.

68744870920197 is a deficient number, since it is larger than the sum of its proper divisors (35779494221883).

68744870920197 is a wasteful number, since it uses less digits than its factorization.

68744870920197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402016789032 (or 402016789029 counting only the distinct ones).

The product of its (nonzero) digits is 341397504, while the sum is 72.

The spelling of 68744870920197 in words is "sixty-eight trillion, seven hundred forty-four billion, eight hundred seventy million, nine hundred twenty thousand, one hundred ninety-seven".