73917146790737 has 2 divisors, whose sum is σ = 73917146790738. Its totient is φ = 73917146790736.

The previous prime is 73917146790719. The next prime is 73917146790821. The reversal of 73917146790737 is 73709764171937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73383054764881 + 534092025856 = 8566391^2 + 730816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73917146790737 is a prime.

It is a super-2 number, since 2×73917146790737² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73917146790037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36958573395368 + 36958573395369.

It is an arithmetic number, because the mean of its divisors is an integer number (36958573395369).

Almost surely, 2^{73917146790737} is an apocalyptic number.

It is an amenable number.

73917146790737 is a deficient number, since it is larger than the sum of its proper divisors (1).

73917146790737 is an equidigital number, since it uses as much as digits as its factorization.

73917146790737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294055272, while the sum is 71.

The spelling of 73917146790737 in words is "seventy-three trillion, nine hundred seventeen billion, one hundred forty-six million, seven hundred ninety thousand, seven hundred thirty-seven".