82070274389 has 2 divisors, whose sum is σ = 82070274390. Its totient is φ = 82070274388.

The previous prime is 82070274371. The next prime is 82070274409. The reversal of 82070274389 is 98347207028.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70844871889 + 11225402500 = 266167^2 + 105950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82070274389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82070274889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41035137194 + 41035137195.

It is an arithmetic number, because the mean of its divisors is an integer number (41035137195).

Almost surely, 2^82070274389 is an apocalyptic number.

It is an amenable number.

82070274389 is a deficient number, since it is larger than the sum of its proper divisors (1).

82070274389 is an equidigital number, since it uses as much as digits as its factorization.

82070274389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 82070274389 in words is "eighty-two billion, seventy million, two hundred seventy-four thousand, three hundred eighty-nine".