385770273408 has 640 divisors, whose sum is σ = 1351561559040. Its totient is φ = 108092620800.

The previous prime is 385770273397. The next prime is 385770273431. The reversal of 385770273408 is 804372077583.

It is a happy number.

385770273408 is a `hidden beast` number, since 3 + 8 + 577 + 0 + 27 + 3 + 40 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 71028453 + ... + 71033883.

It is an arithmetic number, because the mean of its divisors is an integer number (2111814936).

Almost surely, 2^385770273408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385770273408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (675780779520).

385770273408 is an abundant number, since it is smaller than the sum of its proper divisors (965791285632).

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

385770273408 is a wasteful number, since it uses less digits than its factorization.

385770273408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5518 (or 5497 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 54.

The spelling of 385770273408 in words is "three hundred eighty-five billion, seven hundred seventy million, two hundred seventy-three thousand, four hundred eight".