123732646546 has 8 divisors (see below), whose sum is σ = 186232414284. Its totient is φ = 61655175120.

The previous prime is 123732646537. The next prime is 123732646567. The reversal of 123732646546 is 645646237321.

It can be written as a sum of positive squares in 2 ways, for example, as 122928073321 + 804573225 = 350611^2 + 28365^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 123732646546.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105573345 + ... + 105574516.

Almost surely, 2^123732646546 is an apocalyptic number.

123732646546 is a deficient number, since it is larger than the sum of its proper divisors (62499767738).

123732646546 is a wasteful number, since it uses less digits than its factorization.

123732646546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211148156.

The product of its digits is 4354560, while the sum is 49.

The spelling of 123732646546 in words is "one hundred twenty-three billion, seven hundred thirty-two million, six hundred forty-six thousand, five hundred forty-six".