945477384491 has 4 divisors (see below), whose sum is σ = 945799087800. Its totient is φ = 945155681184.

The previous prime is 945477384469. The next prime is 945477384517. The reversal of 945477384491 is 194483774549.

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

It is a cyclic number.

It is not a de Polignac number, because 945477384491 - 2³⁴ = 928297515307 is a prime.

It is a super-3 number, since 3×945477384491³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (945477384421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160847246 + ... + 160853123.

It is an arithmetic number, because the mean of its divisors is an integer number (236449771950).

Almost surely, 2^945477384491 is an apocalyptic number.

945477384491 is a deficient number, since it is larger than the sum of its proper divisors (321703309).

945477384491 is a wasteful number, since it uses less digits than its factorization.

945477384491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321703308.

The product of its digits is 121927680, while the sum is 65.

The spelling of 945477384491 in words is "nine hundred forty-five billion, four hundred seventy-seven million, three hundred eighty-four thousand, four hundred ninety-one".