1807197055469 has 12 divisors (see below), whose sum is σ = 1956990612276. Its totient is φ = 1668109502592.

The previous prime is 1807197055441. The next prime is 1807197055513. The reversal of 1807197055469 is 9645507917081.

It can be written as a sum of positive squares in 6 ways, for example, as 95252476900 + 1711944578569 = 308630^2 + 1308413^2 .

It is not a de Polignac number, because 1807197055469 - 2³² = 1802902088173 is a prime.

It is a super-2 number, since 2×1807197055469² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1807197055429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3889697 + ... + 4329449.

It is an arithmetic number, because the mean of its divisors is an integer number (163082551023).

Almost surely, 2^{1807197055469} is an apocalyptic number.

It is an amenable number.

1807197055469 is a deficient number, since it is larger than the sum of its proper divisors (149793556807).

1807197055469 is a wasteful number, since it uses less digits than its factorization.

1807197055469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464096 (or 464083 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 62.

The spelling of 1807197055469 in words is "one trillion, eight hundred seven billion, one hundred ninety-seven million, fifty-five thousand, four hundred sixty-nine".