38478234654 has 40 divisors (see below), whose sum is σ = 86589874800. Its totient is φ = 12771018144.

The previous prime is 38478234649. The next prime is 38478234659. The reversal of 38478234654 is 45643287483.

It is an interprime number because it is at equal distance from previous prime (38478234649) and next prime (38478234659).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38478234654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38478234659) 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 19 ways as a sum of consecutive naturals, for example, 471954 + ... + 547445.

It is an arithmetic number, because the mean of its divisors is an integer number (2164746870).

Almost surely, 2^38478234654 is an apocalyptic number.

38478234654 is an abundant number, since it is smaller than the sum of its proper divisors (48111640146).

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

38478234654 is a wasteful number, since it uses less digits than its factorization.

38478234654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019646 (or 1019637 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 54.

The spelling of 38478234654 in words is "thirty-eight billion, four hundred seventy-eight million, two hundred thirty-four thousand, six hundred fifty-four".