84920768123501 has 2 divisors, whose sum is σ = 84920768123502. Its totient is φ = 84920768123500.

The previous prime is 84920768123483. The next prime is 84920768123531. The reversal of 84920768123501 is 10532186702948.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83458712309476 + 1462055814025 = 9135574^2 + 1209155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84920768123501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84920768123531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42460384061750 + 42460384061751.

It is an arithmetic number, because the mean of its divisors is an integer number (42460384061751).

It is a 2-persistent number, because it is pandigital, and so is 2⋅84920768123501 = 169841536247002, but 3⋅84920768123501 = 254762304370503 is not.

Almost surely, 2^{84920768123501} is an apocalyptic number.

It is an amenable number.

84920768123501 is a deficient number, since it is larger than the sum of its proper divisors (1).

84920768123501 is an equidigital number, since it uses as much as digits as its factorization.

84920768123501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 84920768123501 in words is "eighty-four trillion, nine hundred twenty billion, seven hundred sixty-eight million, one hundred twenty-three thousand, five hundred one".