12567773400 has 768 divisors, whose sum is σ = 50486768640. Its totient is φ = 2515968000.

The previous prime is 12567773363. The next prime is 12567773401. The reversal of 12567773400 is 437776521.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12567773401) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 124433350 + ... + 124433450.

It is an arithmetic number, because the mean of its divisors is an integer number (65737980).

Almost surely, 2^12567773400 is an apocalyptic number.

12567773400 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 12567773400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25243384320).

12567773400 is an abundant number, since it is smaller than the sum of its proper divisors (37918995240).

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

12567773400 is a wasteful number, since it uses less digits than its factorization.

12567773400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 42.

The spelling of 12567773400 in words is "twelve billion, five hundred sixty-seven million, seven hundred seventy-three thousand, four hundred".