105856390738 has 32 divisors (see below), whose sum is σ = 193108320000. Its totient is φ = 42483792384.

The previous prime is 105856390729. The next prime is 105856390763. The reversal of 105856390738 is 837093658501.

It is a super-2 number, since 2×105856390738² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1070163 + ... + 1164886.

It is an arithmetic number, because the mean of its divisors is an integer number (6034635000).

Almost surely, 2^105856390738 is an apocalyptic number.

105856390738 is a deficient number, since it is larger than the sum of its proper divisors (87251929262).

105856390738 is a wasteful number, since it uses less digits than its factorization.

105856390738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235274.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 105856390738 in words is "one hundred five billion, eight hundred fifty-six million, three hundred ninety thousand, seven hundred thirty-eight".