79398503453 has 2 divisors, whose sum is σ = 79398503454. Its totient is φ = 79398503452.

The previous prime is 79398503423. The next prime is 79398503491. The reversal of 79398503453 is 35430589397.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49587718489 + 29810784964 = 222683^2 + 172658^2 .

It is a cyclic number.

It is not a de Polignac number, because 79398503453 - 2¹⁶ = 79398437917 is a prime.

It is a super-4 number, since 4×79398503453⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79398503423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39699251726 + 39699251727.

It is an arithmetic number, because the mean of its divisors is an integer number (39699251727).

Almost surely, 2^79398503453 is an apocalyptic number.

It is an amenable number.

79398503453 is a deficient number, since it is larger than the sum of its proper divisors (1).

79398503453 is an equidigital number, since it uses as much as digits as its factorization.

79398503453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12247200, while the sum is 56.

The spelling of 79398503453 in words is "seventy-nine billion, three hundred ninety-eight million, five hundred three thousand, four hundred fifty-three".