38948306657 has 12 divisors (see below), whose sum is σ = 42186247020. Its totient is φ = 35942519808.

The previous prime is 38948306627. The next prime is 38948306693. The reversal of 38948306657 is 75660384983.

It can be written as a sum of positive squares in 6 ways, for example, as 3333445696 + 35614860961 = 57736^2 + 188719^2 .

It is not a de Polignac number, because 38948306657 - 2³² = 34653339361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38948306596 and 38948306605.

It is not an unprimeable number, because it can be changed into a prime (38948306627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 634673 + ... + 693329.

It is an arithmetic number, because the mean of its divisors is an integer number (3515520585).

Almost surely, 2^38948306657 is an apocalyptic number.

It is an amenable number.

38948306657 is a deficient number, since it is larger than the sum of its proper divisors (3237940363).

38948306657 is a wasteful number, since it uses less digits than its factorization.

38948306657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62612 (or 62599 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 38948306657 in words is "thirty-eight billion, nine hundred forty-eight million, three hundred six thousand, six hundred fifty-seven".