126428079500 has 48 divisors (see below), whose sum is σ = 279901457472. Its totient is φ = 49878460800.

The previous prime is 126428079499. The next prime is 126428079517. The reversal of 126428079500 is 5970824621.

It is a happy 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, 1695392 + ... + 1768391.

It is an arithmetic number, because the mean of its divisors is an integer number (5831280364).

Almost surely, 2^126428079500 is an apocalyptic number.

126428079500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126428079500 is an abundant number, since it is smaller than the sum of its proper divisors (153473377972).

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

126428079500 is a wasteful number, since it uses less digits than its factorization.

126428079500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463875 (or 3463863 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 126428079500 in words is "one hundred twenty-six billion, four hundred twenty-eight million, seventy-nine thousand, five hundred".