102053778844 has 12 divisors (see below), whose sum is σ = 178746635368. Its totient is φ = 50983311600.

The previous prime is 102053778821. The next prime is 102053778847. The reversal of 102053778844 is 448877350201.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102053778847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10889187 + ... + 10898554.

Almost surely, 2^102053778844 is an apocalyptic number.

It is an amenable number.

102053778844 is a deficient number, since it is larger than the sum of its proper divisors (76692856524).

102053778844 is a wasteful number, since it uses less digits than its factorization.

102053778844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21788916 (or 21788914 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 102053778844 in words is "one hundred two billion, fifty-three million, seven hundred seventy-eight thousand, eight hundred forty-four".