84913779403 has 2 divisors, whose sum is σ = 84913779404. Its totient is φ = 84913779402.

The previous prime is 84913779397. The next prime is 84913779421. The reversal of 84913779403 is 30497731948.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84913779403 - 2⁵ = 84913779371 is a prime.

It is not a weakly prime, because it can be changed into another prime (84913779493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42456889701 + 42456889702.

It is an arithmetic number, because the mean of its divisors is an integer number (42456889702).

Almost surely, 2^84913779403 is an apocalyptic number.

84913779403 is a deficient number, since it is larger than the sum of its proper divisors (1).

84913779403 is an equidigital number, since it uses as much as digits as its factorization.

84913779403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 84913779403 in words is "eighty-four billion, nine hundred thirteen million, seven hundred seventy-nine thousand, four hundred three".