1451945195257 has 8 divisors (see below), whose sum is σ = 1471868614784. Its totient is φ = 1432022688288.

The previous prime is 1451945195237. The next prime is 1451945195321. The reversal of 1451945195257 is 7525915491541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1451945195257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1451945195237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3360388 + ... + 3767770.

It is an arithmetic number, because the mean of its divisors is an integer number (183983576848).

Almost surely, 2^{1451945195257} is an apocalyptic number.

It is an amenable number.

1451945195257 is a deficient number, since it is larger than the sum of its proper divisors (19923419527).

1451945195257 is an equidigital number, since it uses as much as digits as its factorization.

1451945195257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456279.

The product of its digits is 11340000, while the sum is 58.

The spelling of 1451945195257 in words is "one trillion, four hundred fifty-one billion, nine hundred forty-five million, one hundred ninety-five thousand, two hundred fifty-seven".