38856397523 has 2 divisors, whose sum is σ = 38856397524. Its totient is φ = 38856397522.

The previous prime is 38856397519. The next prime is 38856397529. The reversal of 38856397523 is 32579365883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38856397523 - 2² = 38856397519 is a prime.

It is not a weakly prime, because it can be changed into another prime (38856397529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19428198761 + 19428198762.

It is an arithmetic number, because the mean of its divisors is an integer number (19428198762).

Almost surely, 2^38856397523 is an apocalyptic number.

38856397523 is a deficient number, since it is larger than the sum of its proper divisors (1).

38856397523 is an equidigital number, since it uses as much as digits as its factorization.

38856397523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32659200, while the sum is 59.

The spelling of 38856397523 in words is "thirty-eight billion, eight hundred fifty-six million, three hundred ninety-seven thousand, five hundred twenty-three".