1980721714 has 16 divisors (see below), whose sum is σ = 3149560800. Its totient is φ = 931005504.

The previous prime is 1980721679. The next prime is 1980721727. The reversal of 1980721714 is 4171270891.

It is a super-2 number, since 2×1980721714² = 7846517016622195592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4704 + ... + 63115.

It is an arithmetic number, because the mean of its divisors is an integer number (196847550).

Almost surely, 2^1980721714 is an apocalyptic number.

1980721714 is a deficient number, since it is larger than the sum of its proper divisors (1168839086).

1980721714 is a wasteful number, since it uses less digits than its factorization.

1980721714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68697.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 1980721714 is about 44505.2998417042. The cubic root of 1980721714 is about 1255.8597863851.

The spelling of 1980721714 in words is "one billion, nine hundred eighty million, seven hundred twenty-one thousand, seven hundred fourteen".