123429082857450 has 48 divisors (see below), whose sum is σ = 308813011595136. Its totient is φ = 32623144019200.

The previous prime is 123429082857449. The next prime is 123429082857467. The reversal of 123429082857450 is 54758280924321.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3640958946 + ... + 3640992845.

It is an arithmetic number, because the mean of its divisors is an integer number (6433604408232).

Almost surely, 2^{123429082857450} is an apocalyptic number.

123429082857450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123429082857450 is an abundant number, since it is smaller than the sum of its proper divisors (185383928737686).

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

123429082857450 is a wasteful number, since it uses less digits than its factorization.

123429082857450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7281951919 (or 7281951914 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 60.

The spelling of 123429082857450 in words is "one hundred twenty-three trillion, four hundred twenty-nine billion, eighty-two million, eight hundred fifty-seven thousand, four hundred fifty".