38253887465 has 8 divisors (see below), whose sum is σ = 45931042248. Its totient is φ = 30585525120.

The previous prime is 38253887459. The next prime is 38253887471. The reversal of 38253887465 is 56478835283.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (38253887459) and next prime (38253887471).

It can be written as a sum of positive squares in 4 ways, for example, as 18386944 + 38235500521 = 4288^2 + 195539^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38253887465 - 2¹⁴ = 38253871081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2188532 + ... + 2205941.

It is an arithmetic number, because the mean of its divisors is an integer number (5741380281).

Almost surely, 2^38253887465 is an apocalyptic number.

It is an amenable number.

38253887465 is a deficient number, since it is larger than the sum of its proper divisors (7677154783).

38253887465 is a wasteful number, since it uses less digits than its factorization.

38253887465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396219.

The product of its digits is 38707200, while the sum is 59.

The spelling of 38253887465 in words is "thirty-eight billion, two hundred fifty-three million, eight hundred eighty-seven thousand, four hundred sixty-five".