1980916737 has 8 divisors (see below), whose sum is σ = 2667373440. Its totient is φ = 1307535600.

The previous prime is 1980916697. The next prime is 1980916739. The reversal of 1980916737 is 7376190891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1980916737 - 2⁶ = 1980916673 is a prime.

It is a super-2 number, since 2×1980916737² = 7848062237853454338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1980916737.

It is not an unprimeable number, because it can be changed into a prime (1980916739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3268537 + ... + 3269142.

It is an arithmetic number, because the mean of its divisors is an integer number (333421680).

Almost surely, 2^1980916737 is an apocalyptic number.

It is an amenable number.

1980916737 is a deficient number, since it is larger than the sum of its proper divisors (686456703).

1980916737 is a wasteful number, since it uses less digits than its factorization.

1980916737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6537783.

The product of its (nonzero) digits is 571536, while the sum is 51.

The square root of 1980916737 is about 44507.4907964940. The cubic root of 1980916737 is about 1255.9010025915.

The spelling of 1980916737 in words is "one billion, nine hundred eighty million, nine hundred sixteen thousand, seven hundred thirty-seven".