3553620642 has 96 divisors (see below), whose sum is σ = 9073524096. Its totient is φ = 990950400.

The previous prime is 3553620641. The next prime is 3553620661. The reversal of 3553620642 is 2460263553.

3553620642 is a `hidden beast` number, since 3 + 5 + 5 + 3 + 6 + 2 + 0 + 642 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3553620597 and 3553620606.

It is not an unprimeable number, because it can be changed into a prime (3553620641) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 906667 + ... + 910577.

It is an arithmetic number, because the mean of its divisors is an integer number (94515876).

Almost surely, 2^3553620642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3553620642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4536762048).

3553620642 is an abundant number, since it is smaller than the sum of its proper divisors (5519903454).

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

3553620642 is a wasteful number, since it uses less digits than its factorization.

3553620642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4296 (or 4293 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The square root of 3553620642 is about 59612.2524486368. The cubic root of 3553620642 is about 1526.0087411116.

The spelling of 3553620642 in words is "three billion, five hundred fifty-three million, six hundred twenty thousand, six hundred forty-two".