38899620512623 has 4 divisors (see below), whose sum is σ = 41891899013608. Its totient is φ = 35907342011640.

The previous prime is 38899620512603. The next prime is 38899620512677. The reversal of 38899620512623 is 32621502699883.

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 38899620512623 - 2¹³ = 38899620504431 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 (38899620512603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1496139250473 + ... + 1496139250498.

It is an arithmetic number, because the mean of its divisors is an integer number (10472974753402).

Almost surely, 2^{38899620512623} is an apocalyptic number.

38899620512623 is a deficient number, since it is larger than the sum of its proper divisors (2992278500985).

38899620512623 is a wasteful number, since it uses less digits than its factorization.

38899620512623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992278500984.

The product of its (nonzero) digits is 67184640, while the sum is 64.

The spelling of 38899620512623 in words is "thirty-eight trillion, eight hundred ninety-nine billion, six hundred twenty million, five hundred twelve thousand, six hundred twenty-three".