126358721874 has 384 divisors, whose sum is σ = 388074240000. Its totient is φ = 30017070720.

The previous prime is 126358721857. The next prime is 126358721887. The reversal of 126358721874 is 478127853621.

126358721874 is a `hidden beast` number, since 1 + 2 + 6 + 358 + 7 + 218 + 74 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 126358721874.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 16033467 + ... + 16041345.

It is an arithmetic number, because the mean of its divisors is an integer number (1010610000).

Almost surely, 2^126358721874 is an apocalyptic number.

126358721874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 126358721874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194037120000).

126358721874 is an abundant number, since it is smaller than the sum of its proper divisors (261715518126).

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

126358721874 is a wasteful number, since it uses less digits than its factorization.

126358721874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7963 (or 7950 counting only the distinct ones).

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

The spelling of 126358721874 in words is "one hundred twenty-six billion, three hundred fifty-eight million, seven hundred twenty-one thousand, eight hundred seventy-four".