3548728651 has 4 divisors (see below), whose sum is σ = 3821707792. Its totient is φ = 3275749512.

The previous prime is 3548728649. The next prime is 3548728657. The reversal of 3548728651 is 1568278453.

It is a happy number.

3548728651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3548728651 - 2¹ = 3548728649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3548728595 and 3548728604.

It is not an unprimeable number, because it can be changed into a prime (3548728657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136489551 + ... + 136489576.

It is an arithmetic number, because the mean of its divisors is an integer number (955426948).

Almost surely, 2^3548728651 is an apocalyptic number.

3548728651 is a deficient number, since it is larger than the sum of its proper divisors (272979141).

3548728651 is a wasteful number, since it uses less digits than its factorization.

3548728651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272979140.

The product of its digits is 1612800, while the sum is 49.

The square root of 3548728651 is about 59571.2065598809. The cubic root of 3548728651 is about 1525.3081740002.

The spelling of 3548728651 in words is "three billion, five hundred forty-eight million, seven hundred twenty-eight thousand, six hundred fifty-one".