1453540971893 has 2 divisors, whose sum is σ = 1453540971894. Its totient is φ = 1453540971892.

The previous prime is 1453540971829. The next prime is 1453540971901. The reversal of 1453540971893 is 3981790453541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1191158325604 + 262382646289 = 1091402^2 + 512233^2 .

It is a cyclic number.

It is not a de Polignac number, because 1453540971893 - 2⁶ = 1453540971829 is a prime.

It is a super-2 number, since 2×1453540971893² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1453540976893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726770485946 + 726770485947.

It is an arithmetic number, because the mean of its divisors is an integer number (726770485947).

Almost surely, 2^{1453540971893} is an apocalyptic number.

It is an amenable number.

1453540971893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1453540971893 is an equidigital number, since it uses as much as digits as its factorization.

1453540971893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16329600, while the sum is 59.

The spelling of 1453540971893 in words is "one trillion, four hundred fifty-three billion, five hundred forty million, nine hundred seventy-one thousand, eight hundred ninety-three".