38278143678 has 32 divisors (see below), whose sum is σ = 78877216800. Its totient is φ = 12377970176.

The previous prime is 38278143667. The next prime is 38278143697. The reversal of 38278143678 is 87634187283.

It is a happy number.

It is a super-2 number, since 2×38278143678² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647943 + ... + 704546.

It is an arithmetic number, because the mean of its divisors is an integer number (2464913025).

Almost surely, 2^38278143678 is an apocalyptic number.

38278143678 is an abundant number, since it is smaller than the sum of its proper divisors (40599073122).

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

38278143678 is a wasteful number, since it uses less digits than its factorization.

38278143678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352636.

The product of its digits is 10838016, while the sum is 57.

The spelling of 38278143678 in words is "thirty-eight billion, two hundred seventy-eight million, one hundred forty-three thousand, six hundred seventy-eight".