105052778140 has 24 divisors (see below), whose sum is σ = 220631250672. Its totient is φ = 42017222400.

The previous prime is 105052778119. The next prime is 105052778141. The reversal of 105052778140 is 41877250501.

It is a super-2 number, since 2×105052778140² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105052778093 and 105052778102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105052778141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16386 + ... + 458665.

It is an arithmetic number, because the mean of its divisors is an integer number (9192968778).

Almost surely, 2^105052778140 is an apocalyptic number.

105052778140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105052778140 is an abundant number, since it is smaller than the sum of its proper divisors (115578472532).

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

105052778140 is a wasteful number, since it uses less digits than its factorization.

105052778140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486117 (or 486115 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 40.

The spelling of 105052778140 in words is "one hundred five billion, fifty-two million, seven hundred seventy-eight thousand, one hundred forty".