826778512896 has 80 divisors (see below), whose sum is σ = 2517245326464. Its totient is φ = 236222429184.

The previous prime is 826778512841. The next prime is 826778512927. The reversal of 826778512896 is 698215877628.

826778512896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 826778512896.

It is a congruent number.

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, 38436910 + ... + 38458413.

Almost surely, 2^826778512896 is an apocalyptic number.

It is an amenable number.

826778512896 is an abundant number, since it is smaller than the sum of its proper divisors (1690466813568).

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

826778512896 is an equidigital number, since it uses as much as digits as its factorization.

826778512896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76895351 (or 76895335 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 69.

The spelling of 826778512896 in words is "eight hundred twenty-six billion, seven hundred seventy-eight million, five hundred twelve thousand, eight hundred ninety-six".