102771789120 has 2240 divisors, whose sum is σ = 521948883456. Its totient is φ = 18473287680.

The previous prime is 102771789079. The next prime is 102771789149. The reversal of 102771789120 is 21987177201.

It is a tau number, because it is divible by the number of its divisors (2240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 441080524 + ... + 441080756.

Almost surely, 2^102771789120 is an apocalyptic number.

102771789120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102771789120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260974441728).

102771789120 is an abundant number, since it is smaller than the sum of its proper divisors (419177094336).

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

102771789120 is a wasteful number, since it uses less digits than its factorization.

102771789120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 45.

The spelling of 102771789120 in words is "one hundred two billion, seven hundred seventy-one million, seven hundred eighty-nine thousand, one hundred twenty".