38654129989 has 4 divisors (see below), whose sum is σ = 39901037440. Its totient is φ = 37407222540.

The previous prime is 38654129953. The next prime is 38654130013. The reversal of 38654129989 is 98992145683.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98992145683 = 71 ⋅1394255573.

It is a cyclic number.

It is not a de Polignac number, because 38654129989 - 2¹⁵ = 38654097221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38654129989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38654189989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623453679 + ... + 623453740.

It is an arithmetic number, because the mean of its divisors is an integer number (9975259360).

Almost surely, 2^38654129989 is an apocalyptic number.

It is an amenable number.

38654129989 is a deficient number, since it is larger than the sum of its proper divisors (1246907451).

38654129989 is a wasteful number, since it uses less digits than its factorization.

38654129989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246907450.

The product of its digits is 33592320, while the sum is 64.

The spelling of 38654129989 in words is "thirty-eight billion, six hundred fifty-four million, one hundred twenty-nine thousand, nine hundred eighty-nine".