123462953649 has 32 divisors (see below), whose sum is σ = 209260250880. Its totient is φ = 70475184000.

The previous prime is 123462953573. The next prime is 123462953687. The reversal of 123462953649 is 946359264321.

123462953649 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 62 + 9 + 536 + 49 = 666.

It is not a de Polignac number, because 123462953649 - 2⁹ = 123462953137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123462953595 and 123462953604.

It is not an unprimeable number, because it can be changed into a prime (123462953689) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 169252 + ... + 524949.

It is an arithmetic number, because the mean of its divisors is an integer number (6539382840).

Almost surely, 2^123462953649 is an apocalyptic number.

It is an amenable number.

123462953649 is a deficient number, since it is larger than the sum of its proper divisors (85797297231).

123462953649 is an equidigital number, since it uses as much as digits as its factorization.

123462953649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695158 (or 695152 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 54.

The spelling of 123462953649 in words is "one hundred twenty-three billion, four hundred sixty-two million, nine hundred fifty-three thousand, six hundred forty-nine".