1869877069 has 12 divisors (see below), whose sum is σ = 1959925536. Its totient is φ = 1780591472.

The previous prime is 1869877043. The next prime is 1869877081. The reversal of 1869877069 is 9607789681.

It is not a de Polignac number, because 1869877069 - 2¹³ = 1869868877 is a prime.

It is a super-2 number, since 2×1869877069² = 6992880506344061522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1869876998 and 1869877016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1869877169) 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, 1974054 + ... + 1975000.

It is an arithmetic number, because the mean of its divisors is an integer number (163327128).

Almost surely, 2^1869877069 is an apocalyptic number.

It is an amenable number.

1869877069 is a deficient number, since it is larger than the sum of its proper divisors (90048467).

1869877069 is an frugal number, since it uses more digits than its factorization.

1869877069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556 (or 1263 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 61.

The square root of 1869877069 is about 43242.0752161596. The cubic root of 1869877069 is about 1231.9819697581.

The spelling of 1869877069 in words is "one billion, eight hundred sixty-nine million, eight hundred seventy-seven thousand, sixty-nine".