38620863810 has 192 divisors, whose sum is σ = 105099171840. Its totient is φ = 9830937600.

The previous prime is 38620863803. The next prime is 38620863811. The reversal of 38620863810 is 1836802683.

38620863810 is a `hidden beast` number, since 3 + 8 + 6 + 2 + 0 + 8 + 638 + 1 + 0 = 666.

It is a super-2 number, since 2×38620863810² (a number of 22 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (38620863811) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 44751439 + ... + 44752301.

It is an arithmetic number, because the mean of its divisors is an integer number (547391520).

Almost surely, 2^38620863810 is an apocalyptic number.

38620863810 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38620863810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52549585920).

38620863810 is an abundant number, since it is smaller than the sum of its proper divisors (66478308030).

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

38620863810 is a wasteful number, since it uses less digits than its factorization.

38620863810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 38620863810 in words is "thirty-eight billion, six hundred twenty million, eight hundred sixty-three thousand, eight hundred ten".