381570822745 has 16 divisors (see below), whose sum is σ = 526809196800. Its totient is φ = 259892529984.

The previous prime is 381570822697. The next prime is 381570822749. The reversal of 381570822745 is 547228075183.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381570822745 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 381570822692 and 381570822701.

It is not an unprimeable number, because it can be changed into a prime (381570822749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36578757 + ... + 36589186.

It is an arithmetic number, because the mean of its divisors is an integer number (32925574800).

Almost surely, 2^381570822745 is an apocalyptic number.

381570822745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

381570822745 is a deficient number, since it is larger than the sum of its proper divisors (145238374055).

381570822745 is a wasteful number, since it uses less digits than its factorization.

381570822745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73168104.

The product of its (nonzero) digits is 3763200, while the sum is 52.

The spelling of 381570822745 in words is "three hundred eighty-one billion, five hundred seventy million, eight hundred twenty-two thousand, seven hundred forty-five".