38620728279616 has 56 divisors (see below), whose sum is σ = 87591695312576. Its totient is φ = 16550720064000.

The previous prime is 38620728279559. The next prime is 38620728279619. The reversal of 38620728279616 is 61697282702683.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×38620728279616² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38620728279619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4637866 + ... + 9937366.

It is an arithmetic number, because the mean of its divisors is an integer number (1564137416296).

Almost surely, 2^{38620728279616} is an apocalyptic number.

It is an amenable number.

38620728279616 is an abundant number, since it is smaller than the sum of its proper divisors (48970967032960).

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

38620728279616 is a wasteful number, since it uses less digits than its factorization.

38620728279616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5315787 (or 5315777 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 67.

The spelling of 38620728279616 in words is "thirty-eight trillion, six hundred twenty billion, seven hundred twenty-eight million, two hundred seventy-nine thousand, six hundred sixteen".