123741687890 has 16 divisors (see below), whose sum is σ = 227474082432. Its totient is φ = 48443554224.

The previous prime is 123741687703. The next prime is 123741687913. The reversal of 123741687890 is 98786147321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131639624 + ... + 131640563.

It is an arithmetic number, because the mean of its divisors is an integer number (14217130152).

Almost surely, 2^123741687890 is an apocalyptic number.

123741687890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123741687890 is a deficient number, since it is larger than the sum of its proper divisors (103732394542).

123741687890 is a wasteful number, since it uses less digits than its factorization.

123741687890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263280241.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 123741687890 in words is "one hundred twenty-three billion, seven hundred forty-one million, six hundred eighty-seven thousand, eight hundred ninety".