1078777056 has 48 divisors (see below), whose sum is σ = 3236333184. Its totient is φ = 308221824.

The previous prime is 1078777043. The next prime is 1078777057. The reversal of 1078777056 is 6507778701.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 1078776996 and 1078777014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078777057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801990 + ... + 803333.

It is an arithmetic number, because the mean of its divisors is an integer number (67423608).

Almost surely, 2^1078777056 is an apocalyptic number.

1078777056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1078777056 is an abundant number, since it is smaller than the sum of its proper divisors (2157556128).

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

1078777056 is a wasteful number, since it uses less digits than its factorization.

1078777056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605343 (or 1605335 counting only the distinct ones).

The product of its (nonzero) digits is 576240, while the sum is 48.

The square root of 1078777056 is about 32844.7416796053. The cubic root of 1078777056 is about 1025.5981615893.

The spelling of 1078777056 in words is "one billion, seventy-eight million, seven hundred seventy-seven thousand, fifty-six".