38547245520 has 1120 divisors, whose sum is σ = 163939507200. Its totient is φ = 8413009920.

The previous prime is 38547245519. The next prime is 38547245621. The reversal of 38547245520 is 2554274583.

38547245520 is a `hidden beast` number, since 3 + 8 + 54 + 72 + 4 + 5 + 520 = 666.

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 223 ways as a sum of consecutive naturals, for example, 820154137 + ... + 820154183.

It is an arithmetic number, because the mean of its divisors is an integer number (146374560).

Almost surely, 2^38547245520 is an apocalyptic number.

38547245520 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 38547245520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81969753600).

38547245520 is an abundant number, since it is smaller than the sum of its proper divisors (125392261680).

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

38547245520 is an equidigital number, since it uses as much as digits as its factorization.

38547245520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 45.

The spelling of 38547245520 in words is "thirty-eight billion, five hundred forty-seven million, two hundred forty-five thousand, five hundred twenty".