38368868551 has 4 divisors (see below), whose sum is σ = 41320319992. Its totient is φ = 35417417112.

The previous prime is 38368868537. The next prime is 38368868563. The reversal of 38368868551 is 15586886383.

It is a happy number.

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 38368868551 - 2¹³ = 38368860359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38368868551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38368868521) 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, 1475725701 + ... + 1475725726.

It is an arithmetic number, because the mean of its divisors is an integer number (10330079998).

Almost surely, 2^38368868551 is an apocalyptic number.

38368868551 is a deficient number, since it is larger than the sum of its proper divisors (2951451441).

38368868551 is a wasteful number, since it uses less digits than its factorization.

38368868551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951451440.

The product of its digits is 33177600, while the sum is 61.

The spelling of 38368868551 in words is "thirty-eight billion, three hundred sixty-eight million, eight hundred sixty-eight thousand, five hundred fifty-one".