1969281450697 has 48 divisors (see below), whose sum is σ = 2340391219200. Its totient is φ = 1638507657600.

The previous prime is 1969281450637. The next prime is 1969281450701. The reversal of 1969281450697 is 7960541829691.

It is not a de Polignac number, because 1969281450697 - 2⁷ = 1969281450569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1969281450607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62108554 + ... + 62140252.

It is an arithmetic number, because the mean of its divisors is an integer number (48758150400).

Almost surely, 2^{1969281450697} is an apocalyptic number.

It is an amenable number.

1969281450697 is a deficient number, since it is larger than the sum of its proper divisors (371109768503).

1969281450697 is a wasteful number, since it uses less digits than its factorization.

1969281450697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31942 (or 31853 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 67.

The spelling of 1969281450697 in words is "one trillion, nine hundred sixty-nine billion, two hundred eighty-one million, four hundred fifty thousand, six hundred ninety-seven".