38720451145091 has 2 divisors, whose sum is σ = 38720451145092. Its totient is φ = 38720451145090.

The previous prime is 38720451145037. The next prime is 38720451145093. The reversal of 38720451145091 is 19054115402783.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38720451145091 is a prime.

Together with 38720451145093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38720451145093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19360225572545 + 19360225572546.

It is an arithmetic number, because the mean of its divisors is an integer number (19360225572546).

Almost surely, 2^{38720451145091} is an apocalyptic number.

38720451145091 is a deficient number, since it is larger than the sum of its proper divisors (1).

38720451145091 is an equidigital number, since it uses as much as digits as its factorization.

38720451145091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 38720451145091 in words is "thirty-eight trillion, seven hundred twenty billion, four hundred fifty-one million, one hundred forty-five thousand, ninety-one".