38781569265 has 16 divisors (see below), whose sum is σ = 62142182208. Its totient is φ = 20652946496.

The previous prime is 38781569261. The next prime is 38781569269. The reversal of 38781569265 is 56296518783.

38781569265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38781569261) and next prime (38781569269).

It is a cyclic number.

It is not a de Polignac number, because 38781569265 - 2² = 38781569261 is a prime.

It is a super-2 number, since 2×38781569265² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38781569199 and 38781569208.

It is not an unprimeable number, because it can be changed into a prime (38781569261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1899327 + ... + 1919636.

It is an arithmetic number, because the mean of its divisors is an integer number (3883886388).

Almost surely, 2^38781569265 is an apocalyptic number.

It is an amenable number.

38781569265 is a deficient number, since it is larger than the sum of its proper divisors (23360612943).

38781569265 is a wasteful number, since it uses less digits than its factorization.

38781569265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819648.

The product of its digits is 21772800, while the sum is 60.

The spelling of 38781569265 in words is "thirty-eight billion, seven hundred eighty-one million, five hundred sixty-nine thousand, two hundred sixty-five".