1945306419097 has 8 divisors (see below), whose sum is σ = 2012420199240. Its totient is φ = 1878194922240.

The previous prime is 1945306419037. The next prime is 1945306419127. The reversal of 1945306419097 is 7909146035491.

It can be written as a sum of positive squares in 4 ways, for example, as 700629265296 + 1244677153801 = 837036^2 + 1115651^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1945306419097 - 2²⁷ = 1945172201369 is a prime.

It is a super-4 number, since 4×1945306419097⁴ (a number of 50 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1945306419037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262353 + ... + 2341825.

It is an arithmetic number, because the mean of its divisors is an integer number (251552524905).

Almost surely, 2^{1945306419097} is an apocalyptic number.

It is an amenable number.

1945306419097 is a deficient number, since it is larger than the sum of its proper divisors (67113780143).

1945306419097 is a wasteful number, since it uses less digits than its factorization.

1945306419097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141643.

The product of its (nonzero) digits is 7348320, while the sum is 58.

The spelling of 1945306419097 in words is "one trillion, nine hundred forty-five billion, three hundred six million, four hundred nineteen thousand, ninety-seven".