123453690984 has 96 divisors (see below), whose sum is σ = 362701914120. Its totient is φ = 37708443648.

The previous prime is 123453690959. The next prime is 123453691021. The reversal of 123453690984 is 489096354321.

123453690984 is a `hidden beast` number, since 1 + 23 + 4 + 536 + 9 + 0 + 9 + 84 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 82726414884 + 40727276100 = 287622^2 + 201810^2 .

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 123453690984.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 353137 + ... + 609600.

Almost surely, 2^123453690984 is an apocalyptic number.

It is an amenable number.

123453690984 is an abundant number, since it is smaller than the sum of its proper divisors (239248223136).

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

123453690984 is a wasteful number, since it uses less digits than its factorization.

123453690984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962899 (or 962892 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 123453690984 in words is "one hundred twenty-three billion, four hundred fifty-three million, six hundred ninety thousand, nine hundred eighty-four".