38393440545 has 16 divisors (see below), whose sum is σ = 61454915712. Its totient is φ = 20468031360.

The previous prime is 38393440471. The next prime is 38393440571. The reversal of 38393440545 is 54504439383.

It is not a de Polignac number, because 38393440545 - 2⁸ = 38393440289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38393440494 and 38393440503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491836 + ... + 564525.

It is an arithmetic number, because the mean of its divisors is an integer number (3840932232).

Almost surely, 2^38393440545 is an apocalyptic number.

It is an amenable number.

38393440545 is a deficient number, since it is larger than the sum of its proper divisors (23061475167).

38393440545 is a wasteful number, since it uses less digits than its factorization.

38393440545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058792.

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 38393440545 in words is "thirty-eight billion, three hundred ninety-three million, four hundred forty thousand, five hundred forty-five".