38648649078 has 24 divisors (see below), whose sum is σ = 90180181728. Its totient is φ = 11891891952.

The previous prime is 38648649041. The next prime is 38648649079. The reversal of 38648649078 is 87094684683.

38648649078 is a `hidden beast` number, since 3 + 8 + 64 + 86 + 490 + 7 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38648649079) 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, 82582350 + ... + 82582817.

It is an arithmetic number, because the mean of its divisors is an integer number (3757507572).

Almost surely, 2^38648649078 is an apocalyptic number.

38648649078 is an abundant number, since it is smaller than the sum of its proper divisors (51531532650).

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

38648649078 is a wasteful number, since it uses less digits than its factorization.

38648649078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165165188 (or 165165185 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 38648649078 in words is "thirty-eight billion, six hundred forty-eight million, six hundred forty-nine thousand, seventy-eight".