38871978876 has 18 divisors (see below), whose sum is σ = 98259724472. Its totient is φ = 12957326280.

The previous prime is 38871978833. The next prime is 38871978877. The reversal of 38871978876 is 67887917883.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×38871978876² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38871978877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 539888560 + ... + 539888631.

Almost surely, 2^38871978876 is an apocalyptic number.

38871978876 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

38871978876 is an abundant number, since it is smaller than the sum of its proper divisors (59387745596).

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

38871978876 is a wasteful number, since it uses less digits than its factorization.

38871978876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079777201 (or 1079777196 counting only the distinct ones).

The product of its digits is 227598336, while the sum is 72.

The spelling of 38871978876 in words is "thirty-eight billion, eight hundred seventy-one million, nine hundred seventy-eight thousand, eight hundred seventy-six".