82351940387 has 2 divisors, whose sum is σ = 82351940388. Its totient is φ = 82351940386.

The previous prime is 82351940383. The next prime is 82351940453. The reversal of 82351940387 is 78304915328.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82351940387 - 2² = 82351940383 is a prime.

It is not a weakly prime, because it can be changed into another prime (82351940383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41175970193 + 41175970194.

It is an arithmetic number, because the mean of its divisors is an integer number (41175970194).

Almost surely, 2^82351940387 is an apocalyptic number.

82351940387 is a deficient number, since it is larger than the sum of its proper divisors (1).

82351940387 is an equidigital number, since it uses as much as digits as its factorization.

82351940387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 82351940387 in words is "eighty-two billion, three hundred fifty-one million, nine hundred forty thousand, three hundred eighty-seven".