1420726194749 has 2 divisors, whose sum is σ = 1420726194750. Its totient is φ = 1420726194748.

The previous prime is 1420726194689. The next prime is 1420726194787. The reversal of 1420726194749 is 9474916270241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 729175950724 + 691550244025 = 853918^2 + 831595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420726194749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1420726194694 and 1420726194703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420726194949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710363097374 + 710363097375.

It is an arithmetic number, because the mean of its divisors is an integer number (710363097375).

Almost surely, 2^{1420726194749} is an apocalyptic number.

It is an amenable number.

1420726194749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420726194749 is an equidigital number, since it uses as much as digits as its factorization.

1420726194749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6096384, while the sum is 56.

The spelling of 1420726194749 in words is "one trillion, four hundred twenty billion, seven hundred twenty-six million, one hundred ninety-four thousand, seven hundred forty-nine".