919475272869 has 16 divisors (see below), whose sum is σ = 1319362787520. Its totient is φ = 567467861760.

The previous prime is 919475272867. The next prime is 919475272931. The reversal of 919475272869 is 968272574919.

It is not a de Polignac number, because 919475272869 - 2¹ = 919475272867 is a prime.

It is a super-2 number, since 2×919475272869² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (919475272861) 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 15 ways as a sum of consecutive naturals, for example, 147774979 + ... + 147781200.

It is an arithmetic number, because the mean of its divisors is an integer number (82460174220).

Almost surely, 2^919475272869 is an apocalyptic number.

It is an amenable number.

919475272869 is a deficient number, since it is larger than the sum of its proper divisors (399887514651).

919475272869 is a wasteful number, since it uses less digits than its factorization.

919475272869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295556260.

The product of its digits is 137168640, while the sum is 69.

The spelling of 919475272869 in words is "nine hundred nineteen billion, four hundred seventy-five million, two hundred seventy-two thousand, eight hundred sixty-nine".