8256187401 has 32 divisors (see below), whose sum is σ = 14446924800. Its totient is φ = 4063193280.

The previous prime is 8256187339. The next prime is 8256187441. The reversal of 8256187401 is 1047816528.

It is not a de Polignac number, because 8256187401 - 2⁶ = 8256187337 is a prime.

It is a super-2 number, since 2×8256187401² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8256187441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 936166 + ... + 944943.

It is an arithmetic number, because the mean of its divisors is an integer number (451466400).

Almost surely, 2^8256187401 is an apocalyptic number.

It is an amenable number.

8256187401 is a deficient number, since it is larger than the sum of its proper divisors (6190737399).

8256187401 is a wasteful number, since it uses less digits than its factorization.

8256187401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881149.

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 8256187401 is about 90863.5647605794. The cubic root of 8256187401 is about 2021.1250309991.

The spelling of 8256187401 in words is "eight billion, two hundred fifty-six million, one hundred eighty-seven thousand, four hundred one".