778428050106 has 32 divisors (see below), whose sum is σ = 1872909596160. Its totient is φ = 210702329136.

The previous prime is 778428050093. The next prime is 778428050129. The reversal of 778428050106 is 601050824877.

It is a super-2 number, since 2×778428050106² (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 15 ways as a sum of consecutive naturals, for example, 487736076 + ... + 487737671.

It is an arithmetic number, because the mean of its divisors is an integer number (58528424880).

Almost surely, 2^778428050106 is an apocalyptic number.

778428050106 is an abundant number, since it is smaller than the sum of its proper divisors (1094481546054).

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

778428050106 is a wasteful number, since it uses less digits than its factorization.

778428050106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975473778.

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 778428050106 in words is "seven hundred seventy-eight billion, four hundred twenty-eight million, fifty thousand, one hundred six".