105407487638 has 8 divisors (see below), whose sum is σ = 158112626160. Its totient is φ = 52703278920.

The previous prime is 105407487593. The next prime is 105407487659. The reversal of 105407487638 is 836784704501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×105407487638² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105407487638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257528 + ... + 526436.

It is an arithmetic number, because the mean of its divisors is an integer number (19764078270).

Almost surely, 2^105407487638 is an apocalyptic number.

105407487638 is a deficient number, since it is larger than the sum of its proper divisors (52705138522).

105407487638 is a wasteful number, since it uses less digits than its factorization.

105407487638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464902.

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 105407487638 in words is "one hundred five billion, four hundred seven million, four hundred eighty-seven thousand, six hundred thirty-eight".