1980415512 has 24 divisors (see below), whose sum is σ = 5363625540. Its totient is φ = 660138480.

The previous prime is 1980415469. The next prime is 1980415523. The reversal of 1980415512 is 2155140891.

1980415512 is a `hidden beast` number, since 198 + 0 + 415 + 51 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13752814 + ... + 13752957.

Almost surely, 2^1980415512 is an apocalyptic number.

1980415512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1980415512 is an abundant number, since it is smaller than the sum of its proper divisors (3383210028).

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

1980415512 is a wasteful number, since it uses less digits than its factorization.

1980415512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27505783 (or 27505776 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 1980415512 is about 44501.8596465361. The cubic root of 1980415512 is about 1255.7950681239.

The spelling of 1980415512 in words is "one billion, nine hundred eighty million, four hundred fifteen thousand, five hundred twelve".