38662642620 has 144 divisors (see below), whose sum is σ = 138354198528. Its totient is φ = 8552096640.

The previous prime is 38662642553. The next prime is 38662642621. The reversal of 38662642620 is 2624626683.

38662642620 is a `hidden beast` number, since 386 + 6 + 2 + 6 + 4 + 262 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38662642621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 455854 + ... + 533973.

Almost surely, 2^38662642620 is an apocalyptic number.

38662642620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38662642620 is an abundant number, since it is smaller than the sum of its proper divisors (99691555908).

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

38662642620 is a wasteful number, since it uses less digits than its factorization.

38662642620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989880 (or 989875 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The spelling of 38662642620 in words is "thirty-eight billion, six hundred sixty-two million, six hundred forty-two thousand, six hundred twenty".