1623012136452 has 144 divisors (see below), whose sum is σ = 4789490614272. Its totient is φ = 453753869760.

The previous prime is 1623012136433. The next prime is 1623012136463. The reversal of 1623012136452 is 2546312103261.

1623012136452 is a `hidden beast` number, since 1 + 6 + 2 + 3 + 0 + 1 + 2 + 1 + 3 + 645 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68576773 + ... + 68600435.

It is an arithmetic number, because the mean of its divisors is an integer number (33260351488).

Almost surely, 2^{1623012136452} is an apocalyptic number.

1623012136452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1623012136452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2394745307136).

1623012136452 is an abundant number, since it is smaller than the sum of its proper divisors (3166478477820).

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

1623012136452 is a wasteful number, since it uses less digits than its factorization.

1623012136452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29518 (or 29513 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 1623012136452 in words is "one trillion, six hundred twenty-three billion, twelve million, one hundred thirty-six thousand, four hundred fifty-two".