3612405654 has 128 divisors (see below), whose sum is σ = 9458588160. Its totient is φ = 1007510400.

The previous prime is 3612405637. The next prime is 3612405661. The reversal of 3612405654 is 4565042163.

3612405654 is a `hidden beast` number, since 361 + 240 + 5 + 6 + 54 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5227449 + ... + 5228139.

It is an arithmetic number, because the mean of its divisors is an integer number (73895220).

Almost surely, 2^3612405654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3612405654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4729294080).

3612405654 is an abundant number, since it is smaller than the sum of its proper divisors (5846182506).

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

3612405654 is a wasteful number, since it uses less digits than its factorization.

3612405654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403 (or 1397 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 3612405654 is about 60103.2915404805. The cubic root of 3612405654 is about 1534.3773223067.

The spelling of 3612405654 in words is "three billion, six hundred twelve million, four hundred five thousand, six hundred fifty-four".