1969684136 has 16 divisors (see below), whose sum is σ = 4220751840. Its totient is φ = 844150320.

The previous prime is 1969684127. The next prime is 1969684139. The reversal of 1969684136 is 6314869691.

It is a super-2 number, since 2×1969684136² = 7759311191220132992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1969684139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17586410 + ... + 17586521.

It is an arithmetic number, because the mean of its divisors is an integer number (263796990).

Almost surely, 2^1969684136 is an apocalyptic number.

It is an amenable number.

1969684136 is an abundant number, since it is smaller than the sum of its proper divisors (2251067704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1969684136 is a wasteful number, since it uses less digits than its factorization.

1969684136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35172944 (or 35172940 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 53.

The square root of 1969684136 is about 44381.1236450814. The cubic root of 1969684136 is about 1253.5226789408.

The spelling of 1969684136 in words is "one billion, nine hundred sixty-nine million, six hundred eighty-four thousand, one hundred thirty-six".