126728213460 has 48 divisors (see below), whose sum is σ = 355013366400. Its totient is φ = 33777583744.

The previous prime is 126728213459. The next prime is 126728213471. The reversal of 126728213460 is 64312827621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395595 + ... + 640274.

It is an arithmetic number, because the mean of its divisors is an integer number (7396111800).

Almost surely, 2^126728213460 is an apocalyptic number.

126728213460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126728213460 is an abundant number, since it is smaller than the sum of its proper divisors (228285152940).

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

126728213460 is a wasteful number, since it uses less digits than its factorization.

126728213460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037920 (or 1037918 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 126728213460 in words is "one hundred twenty-six billion, seven hundred twenty-eight million, two hundred thirteen thousand, four hundred sixty".