1982758815 has 48 divisors (see below), whose sum is σ = 3601540800. Its totient is φ = 1007170560.

The previous prime is 1982758793. The next prime is 1982758829. The reversal of 1982758815 is 5188572891.

It is not a de Polignac number, because 1982758815 - 2⁹ = 1982758303 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 245461 + ... + 253409.

It is an arithmetic number, because the mean of its divisors is an integer number (75032100).

Almost surely, 2^1982758815 is an apocalyptic number.

1982758815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1982758815 is a deficient number, since it is larger than the sum of its proper divisors (1618781985).

1982758815 is a wasteful number, since it uses less digits than its factorization.

1982758815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8224 (or 8221 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 54.

The square root of 1982758815 is about 44528.1800099667. The cubic root of 1982758815 is about 1256.2901744039.

The spelling of 1982758815 in words is "one billion, nine hundred eighty-two million, seven hundred fifty-eight thousand, eight hundred fifteen".