1451641113491 has 2 divisors, whose sum is σ = 1451641113492. Its totient is φ = 1451641113490.

The previous prime is 1451641113467. The next prime is 1451641113499. The reversal of 1451641113491 is 1943111461541.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1451641113491 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1451641113499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725820556745 + 725820556746.

It is an arithmetic number, because the mean of its divisors is an integer number (725820556746).

Almost surely, 2^{1451641113491} is an apocalyptic number.

1451641113491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1451641113491 is an equidigital number, since it uses as much as digits as its factorization.

1451641113491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 41.

The spelling of 1451641113491 in words is "one trillion, four hundred fifty-one billion, six hundred forty-one million, one hundred thirteen thousand, four hundred ninety-one".