1973972616 has 128 divisors (see below), whose sum is σ = 6351298560. Its totient is φ = 496166400.

The previous prime is 1973972603. The next prime is 1973972621. The reversal of 1973972616 is 6162793791.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40060 + ... + 74516.

It is an arithmetic number, because the mean of its divisors is an integer number (49619520).

Almost surely, 2^1973972616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1973972616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3175649280).

1973972616 is an abundant number, since it is smaller than the sum of its proper divisors (4377325944).

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

1973972616 is a wasteful number, since it uses less digits than its factorization.

1973972616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34515 (or 34511 counting only the distinct ones).

The product of its digits is 857304, while the sum is 51.

The square root of 1973972616 is about 44429.4116098784. The cubic root of 1973972616 is about 1254.4317604439.

The spelling of 1973972616 in words is "one billion, nine hundred seventy-three million, nine hundred seventy-two thousand, six hundred sixteen".