126251387748 has 72 divisors (see below), whose sum is σ = 331024337280. Its totient is φ = 42075015840.

The previous prime is 126251387693. The next prime is 126251387771. The reversal of 126251387748 is 847783152621.

126251387748 is a `hidden beast` number, since 1 + 2 + 6 + 2 + 513 + 87 + 7 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 126251387694 and 126251387703.

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 23 ways as a sum of consecutive naturals, for example, 6036373 + ... + 6057251.

It is an arithmetic number, because the mean of its divisors is an integer number (4597560240).

Almost surely, 2^126251387748 is an apocalyptic number.

126251387748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

126251387748 is an abundant number, since it is smaller than the sum of its proper divisors (204772949532).

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

126251387748 is a wasteful number, since it uses less digits than its factorization.

126251387748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27119 (or 27105 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The spelling of 126251387748 in words is "one hundred twenty-six billion, two hundred fifty-one million, three hundred eighty-seven thousand, seven hundred forty-eight".