11346777780 has 192 divisors, whose sum is σ = 34673184000. Its totient is φ = 2755952640.

The previous prime is 11346777763. The next prime is 11346777787. The reversal of 11346777780 is 8777764311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11346777787) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25270996 + ... + 25271444.

It is an arithmetic number, because the mean of its divisors is an integer number (180589500).

Almost surely, 2^11346777780 is an apocalyptic number.

11346777780 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 11346777780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17336592000).

11346777780 is an abundant number, since it is smaller than the sum of its proper divisors (23326406220).

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

11346777780 is a wasteful number, since it uses less digits than its factorization.

11346777780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834 (or 832 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 51.

The spelling of 11346777780 in words is "eleven billion, three hundred forty-six million, seven hundred seventy-seven thousand, seven hundred eighty".