126387638748 has 72 divisors (see below), whose sum is σ = 370262430720. Its totient is φ = 35602146720.

The previous prime is 126387638743. The next prime is 126387638777. The reversal of 126387638748 is 847836783621.

126387638748 is a `hidden beast` number, since 126 + 387 + 63 + 8 + 74 + 8 = 666.

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 (126387638743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3514068 + ... + 3549851.

It is an arithmetic number, because the mean of its divisors is an integer number (5142533760).

Almost surely, 2^126387638748 is an apocalyptic number.

126387638748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

126387638748 is an abundant number, since it is smaller than the sum of its proper divisors (243874791972).

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

126387638748 is a wasteful number, since it uses less digits than its factorization.

126387638748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7064007 (or 7064002 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 63.

The spelling of 126387638748 in words is "one hundred twenty-six billion, three hundred eighty-seven million, six hundred thirty-eight thousand, seven hundred forty-eight".