1078778063 has 4 divisors (see below), whose sum is σ = 1176848808. Its totient is φ = 980707320.

The previous prime is 1078778053. The next prime is 1078778081. The reversal of 1078778063 is 3608778701.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1078778063 - 2⁸ = 1078777807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1078777999 and 1078778017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078778033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49035356 + ... + 49035377.

It is an arithmetic number, because the mean of its divisors is an integer number (294212202).

Almost surely, 2^1078778063 is an apocalyptic number.

1078778063 is a deficient number, since it is larger than the sum of its proper divisors (98070745).

1078778063 is an equidigital number, since it uses as much as digits as its factorization.

1078778063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98070744.

The product of its (nonzero) digits is 395136, while the sum is 47.

The square root of 1078778063 is about 32844.7570093006. The cubic root of 1078778063 is about 1025.5984807090.

The spelling of 1078778063 in words is "one billion, seventy-eight million, seven hundred seventy-eight thousand, sixty-three".