1948775410869 has 32 divisors (see below), whose sum is σ = 2971558302720. Its totient is φ = 1112837864832.

The previous prime is 1948775410843. The next prime is 1948775410909. The reversal of 1948775410869 is 9680145778491.

It is not a de Polignac number, because 1948775410869 - 2²⁵ = 1948741856437 is a prime.

It is a super-2 number, since 2×1948775410869² (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 (1948775410069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376281522 + ... + 376286700.

It is an arithmetic number, because the mean of its divisors is an integer number (92861196960).

Almost surely, 2^{1948775410869} is an apocalyptic number.

It is an amenable number.

1948775410869 is a deficient number, since it is larger than the sum of its proper divisors (1022782891851).

1948775410869 is a wasteful number, since it uses less digits than its factorization.

1948775410869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13769.

The product of its (nonzero) digits is 121927680, while the sum is 69.

The spelling of 1948775410869 in words is "one trillion, nine hundred forty-eight billion, seven hundred seventy-five million, four hundred ten thousand, eight hundred sixty-nine".