38609799551 has 4 divisors (see below), whose sum is σ = 40288486512. Its totient is φ = 36931112592.

The previous prime is 38609799539. The next prime is 38609799581. The reversal of 38609799551 is 15599790683.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38609799551 - 2¹⁴ = 38609783167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38609799581) 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, 839343446 + ... + 839343491.

It is an arithmetic number, because the mean of its divisors is an integer number (10072121628).

Almost surely, 2^38609799551 is an apocalyptic number.

38609799551 is a deficient number, since it is larger than the sum of its proper divisors (1678686961).

38609799551 is a wasteful number, since it uses less digits than its factorization.

38609799551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678686960.

The product of its (nonzero) digits is 18370800, while the sum is 62.

The spelling of 38609799551 in words is "thirty-eight billion, six hundred nine million, seven hundred ninety-nine thousand, five hundred fifty-one".