3616978480549 has 32 divisors (see below), whose sum is σ = 4414554224640. Its totient is φ = 2896551705600.

The previous prime is 3616978480499. The next prime is 3616978480559. The reversal of 3616978480549 is 9450848796163.

It is a happy number.

It is not a de Polignac number, because 3616978480549 - 2¹¹ = 3616978478501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3616978480559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116537137 + ... + 116568169.

It is an arithmetic number, because the mean of its divisors is an integer number (137954819520).

Almost surely, 2^{3616978480549} is an apocalyptic number.

It is an amenable number.

3616978480549 is a deficient number, since it is larger than the sum of its proper divisors (797575744091).

3616978480549 is a wasteful number, since it uses less digits than its factorization.

3616978480549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49621.

The product of its (nonzero) digits is 313528320, while the sum is 70.

The spelling of 3616978480549 in words is "three trillion, six hundred sixteen billion, nine hundred seventy-eight million, four hundred eighty thousand, five hundred forty-nine".