778553863130 has 16 divisors (see below), whose sum is σ = 1401484335264. Its totient is φ = 311402127120.

The previous prime is 778553863121. The next prime is 778553863159. The reversal of 778553863130 is 31368355877.

It is a super-2 number, since 2×778553863130² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2258312 + ... + 2580131.

It is an arithmetic number, because the mean of its divisors is an integer number (87592770954).

Almost surely, 2^778553863130 is an apocalyptic number.

778553863130 is a deficient number, since it is larger than the sum of its proper divisors (622930472134).

778553863130 is a wasteful number, since it uses less digits than its factorization.

778553863130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4854541.

The product of its (nonzero) digits is 12700800, while the sum is 56.

The spelling of 778553863130 in words is "seven hundred seventy-eight billion, five hundred fifty-three million, eight hundred sixty-three thousand, one hundred thirty".