381287628310 has 64 divisors (see below), whose sum is σ = 733191782400. Its totient is φ = 142429300992.

The previous prime is 381287628299. The next prime is 381287628311. The reversal of 381287628310 is 13826782183.

It is a super-2 number, since 2×381287628310² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381287628311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4378171 + ... + 4464409.

It is an arithmetic number, because the mean of its divisors is an integer number (11456121600).

Almost surely, 2^381287628310 is an apocalyptic number.

381287628310 is a deficient number, since it is larger than the sum of its proper divisors (351904154090).

381287628310 is a wasteful number, since it uses less digits than its factorization.

381287628310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86725.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 381287628310 in words is "three hundred eighty-one billion, two hundred eighty-seven million, six hundred twenty-eight thousand, three hundred ten".