391223277552096 has 480 divisors, whose sum is σ = 1316744885998080. Its totient is φ = 112852297958400.

The previous prime is 391223277552077. The next prime is 391223277552103. The reversal of 391223277552096 is 690255772322193.

391223277552096 is a `hidden beast` number, since 3 + 9 + 1 + 2 + 2 + 3 + 2 + 77 + 552 + 0 + 9 + 6 = 666.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 55374165 + ... + 62038251.

It is an arithmetic number, because the mean of its divisors is an integer number (2743218512496).

Almost surely, 2^{391223277552096} is an apocalyptic number.

391223277552096 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 391223277552096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658372442999040).

391223277552096 is an abundant number, since it is smaller than the sum of its proper divisors (925521608445984).

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

391223277552096 is a wasteful number, since it uses less digits than its factorization.

391223277552096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6664220 (or 6664203 counting only the distinct ones).

The product of its (nonzero) digits is 85730400, while the sum is 63.

The spelling of 391223277552096 in words is "three hundred ninety-one trillion, two hundred twenty-three billion, two hundred seventy-seven million, five hundred fifty-two thousand, ninety-six".