1980517010 has 32 divisors (see below), whose sum is σ = 3738417840. Its totient is φ = 754403328.

The previous prime is 1980516971. The next prime is 1980517087. The reversal of 1980517010 is 107150891.

It is a Cunningham number, because it is equal to 44503²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 1038579529 + 941937481 = 32227^2 + 30691^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25607 + ... + 67946.

Almost surely, 2^1980517010 is an apocalyptic number.

1980517010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1980517010 is a deficient number, since it is larger than the sum of its proper divisors (1757900830).

1980517010 is a wasteful number, since it uses less digits than its factorization.

1980517010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93662.

The product of its (nonzero) digits is 2520, while the sum is 32.

The square root of 1980517010 is about 44503.0000112352. Note that the first 4 decimals coincide. The cubic root of 1980517010 is about 1255.8165212835.

The spelling of 1980517010 in words is "one billion, nine hundred eighty million, five hundred seventeen thousand, ten".