1980767475 has 72 divisors (see below), whose sum is σ = 3821755392. Its totient is φ = 977803200.

The previous prime is 1980767447. The next prime is 1980767501. The reversal of 1980767475 is 5747670891.

It is a de Polignac number, because none of the positive numbers 2^k-1980767475 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 154252 + ... + 166598.

It is an arithmetic number, because the mean of its divisors is an integer number (53079936).

Almost surely, 2^1980767475 is an apocalyptic number.

1980767475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1980767475 is a deficient number, since it is larger than the sum of its proper divisors (1840987917).

1980767475 is a wasteful number, since it uses less digits than its factorization.

1980767475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12417 (or 12409 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 54.

The square root of 1980767475 is about 44505.8139460453. The cubic root of 1980767475 is about 1255.8694577685.

The spelling of 1980767475 in words is "one billion, nine hundred eighty million, seven hundred sixty-seven thousand, four hundred seventy-five".