126778758750 has 240 divisors, whose sum is σ = 412936318080. Its totient is φ = 27452520000.

The previous prime is 126778758709. The next prime is 126778758751. The reversal of 126778758750 is 57857877621.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126778758751) by changing a digit.

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 119 ways as a sum of consecutive naturals, for example, 1453885 + ... + 1538615.

It is an arithmetic number, because the mean of its divisors is an integer number (1720567992).

Almost surely, 2^126778758750 is an apocalyptic number.

126778758750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 126778758750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206468159040).

126778758750 is an abundant number, since it is smaller than the sum of its proper divisors (286157559330).

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

126778758750 is a wasteful number, since it uses less digits than its factorization.

126778758750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84785 (or 84767 counting only the distinct ones).

The product of its (nonzero) digits is 46099200, while the sum is 63.

The spelling of 126778758750 in words is "one hundred twenty-six billion, seven hundred seventy-eight million, seven hundred fifty-eight thousand, seven hundred fifty".