38214643851 has 48 divisors (see below), whose sum is σ = 56376777600. Its totient is φ = 24939472896.

The previous prime is 38214643829. The next prime is 38214643853. The reversal of 38214643851 is 15834641283.

It is not a de Polignac number, because 38214643851 - 2⁹ = 38214643339 is a prime.

It is a super-2 number, since 2×38214643851² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38214643797 and 38214643806.

It is not an unprimeable number, because it can be changed into a prime (38214643853) 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, 64442611 + ... + 64443203.

It is an arithmetic number, because the mean of its divisors is an integer number (1174516200).

Almost surely, 2^38214643851 is an apocalyptic number.

38214643851 is a deficient number, since it is larger than the sum of its proper divisors (18162133749).

38214643851 is a wasteful number, since it uses less digits than its factorization.

38214643851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300 (or 1297 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The spelling of 38214643851 in words is "thirty-eight billion, two hundred fourteen million, six hundred forty-three thousand, eight hundred fifty-one".