1081758780 has 48 divisors (see below), whose sum is σ = 3365473440. Its totient is φ = 288468864.

The previous prime is 1081758737. The next prime is 1081758823. The reversal of 1081758780 is 878571801.

It is an interprime number because it is at equal distance from previous prime (1081758737) and next prime (1081758823).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 1001089 + ... + 1002168.

It is an arithmetic number, because the mean of its divisors is an integer number (70114030).

Almost surely, 2^1081758780 is an apocalyptic number.

1081758780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1081758780 is an abundant number, since it is smaller than the sum of its proper divisors (2283714660).

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

1081758780 is a wasteful number, since it uses less digits than its factorization.

1081758780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003275 (or 2003267 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 45.

The square root of 1081758780 is about 32890.1015504665. The cubic root of 1081758780 is about 1026.5422051199.

The spelling of 1081758780 in words is "one billion, eighty-one million, seven hundred fifty-eight thousand, seven hundred eighty".