1206480778 has 12 divisors (see below), whose sum is σ = 1891827378. Its totient is φ = 577012040.

The previous prime is 1206480697. The next prime is 1206480853. The reversal of 1206480778 is 8770846021.

It can be written as a sum of positive squares in only one way, i.e., 841174009 + 365306769 = 29003^2 + 19113^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 569113 + ... + 571228.

Almost surely, 2^1206480778 is an apocalyptic number.

1206480778 is a deficient number, since it is larger than the sum of its proper divisors (685346600).

1206480778 is a wasteful number, since it uses less digits than its factorization.

1206480778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140389 (or 1140366 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 1206480778 is about 34734.4321675193. The cubic root of 1206480778 is about 1064.5681507146.

The spelling of 1206480778 in words is "one billion, two hundred six million, four hundred eighty thousand, seven hundred seventy-eight".