893937979453 has 2 divisors, whose sum is σ = 893937979454. Its totient is φ = 893937979452.

The previous prime is 893937979439. The next prime is 893937979481. The reversal of 893937979453 is 354979739398.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 804872739609 + 89065239844 = 897147^2 + 298438^2 .

It is a cyclic number.

It is not a de Polignac number, because 893937979453 - 2⁵ = 893937979421 is a prime.

It is a super-2 number, since 2×893937979453² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 893937979453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (893937979483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 446968989726 + 446968989727.

It is an arithmetic number, because the mean of its divisors is an integer number (446968989727).

Almost surely, 2^893937979453 is an apocalyptic number.

It is an amenable number.

893937979453 is a deficient number, since it is larger than the sum of its proper divisors (1).

893937979453 is an equidigital number, since it uses as much as digits as its factorization.

893937979453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1388832480, while the sum is 76.

The spelling of 893937979453 in words is "eight hundred ninety-three billion, nine hundred thirty-seven million, nine hundred seventy-nine thousand, four hundred fifty-three".