1945401806907 has 96 divisors (see below), whose sum is σ = 3158689963520. Its totient is φ = 1145632481280.

The previous prime is 1945401806903. The next prime is 1945401806927. The reversal of 1945401806907 is 7096081045491.

1945401806907 is a `hidden beast` number, since 1 + 9 + 4 + 540 + 1 + 8 + 0 + 6 + 90 + 7 = 666.

It is not a de Polignac number, because 1945401806907 - 2² = 1945401806903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1945401806903) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 798276093 + ... + 798278529.

Almost surely, 2^{1945401806907} is an apocalyptic number.

1945401806907 is a deficient number, since it is larger than the sum of its proper divisors (1213288156613).

1945401806907 is a wasteful number, since it uses less digits than its factorization.

1945401806907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4853 (or 4850 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 1945401806907 in words is "one trillion, nine hundred forty-five billion, four hundred one million, eight hundred six thousand, nine hundred seven".