1420751744737 has 4 divisors (see below), whose sum is σ = 1530040340500. Its totient is φ = 1311463148976.

The previous prime is 1420751744719. The next prime is 1420751744809. The reversal of 1420751744737 is 7374471570241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 961750914721 + 459000830016 = 980689^2 + 677496^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420751744737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420751744437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54644297862 + ... + 54644297887.

It is an arithmetic number, because the mean of its divisors is an integer number (382510085125).

Almost surely, 2^{1420751744737} is an apocalyptic number.

It is an amenable number.

1420751744737 is a deficient number, since it is larger than the sum of its proper divisors (109288595763).

1420751744737 is a wasteful number, since it uses less digits than its factorization.

1420751744737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109288595762.

The product of its (nonzero) digits is 4609920, while the sum is 52.

The spelling of 1420751744737 in words is "one trillion, four hundred twenty billion, seven hundred fifty-one million, seven hundred forty-four thousand, seven hundred thirty-seven".