38913947100 has 648 divisors, whose sum is σ = 149313950240. Its totient is φ = 8616430080.

The previous prime is 38913947057. The next prime is 38913947167. The reversal of 38913947100 is 174931983.

It is a super-3 number, since 3×38913947100³ (a number of 33 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 169929786 + ... + 169930014.

Almost surely, 2^38913947100 is an apocalyptic number.

38913947100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38913947100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74656975120).

38913947100 is an abundant number, since it is smaller than the sum of its proper divisors (110400003140).

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

38913947100 is a wasteful number, since it uses less digits than its factorization.

38913947100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 38913947100 in words is "thirty-eight billion, nine hundred thirteen million, nine hundred forty-seven thousand, one hundred".