1969445089677 has 64 divisors (see below), whose sum is σ = 2895598813184. Its totient is φ = 1183301602560.

The previous prime is 1969445089673. The next prime is 1969445089681. The reversal of 1969445089677 is 7769805449691.

It is an interprime number because it is at equal distance from previous prime (1969445089673) and next prime (1969445089681).

It is not a de Polignac number, because 1969445089677 - 2² = 1969445089673 is a prime.

It is a super-2 number, since 2×1969445089677² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1969445089599 and 1969445089608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1969445089673) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 428417343 + ... + 428421939.

It is an arithmetic number, because the mean of its divisors is an integer number (45243731456).

Almost surely, 2^{1969445089677} is an apocalyptic number.

It is an amenable number.

1969445089677 is a deficient number, since it is larger than the sum of its proper divisors (926153723507).

1969445089677 is a wasteful number, since it uses less digits than its factorization.

1969445089677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6098.

The product of its (nonzero) digits is 823011840, while the sum is 75.

The spelling of 1969445089677 in words is "one trillion, nine hundred sixty-nine billion, four hundred forty-five million, eighty-nine thousand, six hundred seventy-seven".