10109778213652 has 24 divisors (see below), whose sum is σ = 19053919565856. Its totient is φ = 4665836950368.

The previous prime is 10109778213599. The next prime is 10109778213701. The reversal of 10109778213652 is 25631287790101.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 10109778213652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3324778 + ... + 5592289.

It is an arithmetic number, because the mean of its divisors is an integer number (793913315244).

Almost surely, 2^{10109778213652} is an apocalyptic number.

It is an amenable number.

10109778213652 is a deficient number, since it is larger than the sum of its proper divisors (8944141352204).

10109778213652 is a wasteful number, since it uses less digits than its factorization.

10109778213652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8938887 (or 8938885 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 10109778213652 in words is "ten trillion, one hundred nine billion, seven hundred seventy-eight million, two hundred thirteen thousand, six hundred fifty-two".