42287973654397 has 2 divisors, whose sum is σ = 42287973654398. Its totient is φ = 42287973654396.

The previous prime is 42287973654343. The next prime is 42287973654529. The reversal of 42287973654397 is 79345637978224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42100229963961 + 187743690436 = 6488469^2 + 433294^2 .

It is a cyclic number.

It is not a de Polignac number, because 42287973654397 - 2²³ = 42287965265789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42287973654337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21143986827198 + 21143986827199.

It is an arithmetic number, because the mean of its divisors is an integer number (21143986827199).

Almost surely, 2^{42287973654397} is an apocalyptic number.

It is an amenable number.

42287973654397 is a deficient number, since it is larger than the sum of its proper divisors (1).

42287973654397 is an equidigital number, since it uses as much as digits as its factorization.

42287973654397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840721920, while the sum is 76.

The spelling of 42287973654397 in words is "forty-two trillion, two hundred eighty-seven billion, nine hundred seventy-three million, six hundred fifty-four thousand, three hundred ninety-seven".