1969981476 has 12 divisors (see below), whose sum is σ = 4596623472. Its totient is φ = 656660488.

The previous prime is 1969981469. The next prime is 1969981523. The reversal of 1969981476 is 6741899691.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82082550 + ... + 82082573.

It is an arithmetic number, because the mean of its divisors is an integer number (383051956).

Almost surely, 2^1969981476 is an apocalyptic number.

It is an amenable number.

1969981476 is an abundant number, since it is smaller than the sum of its proper divisors (2626641996).

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

1969981476 is a wasteful number, since it uses less digits than its factorization.

1969981476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164165130 (or 164165128 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 60.

The square root of 1969981476 is about 44384.4733662573. The cubic root of 1969981476 is about 1253.5857522822.

The spelling of 1969981476 in words is "one billion, nine hundred sixty-nine million, nine hundred eighty-one thousand, four hundred seventy-six".