8257233381 has 16 divisors (see below), whose sum is σ = 11491714944. Its totient is φ = 5263928384.

The previous prime is 8257233373. The next prime is 8257233407. The reversal of 8257233381 is 1833327528.

It is a cyclic number.

It is not a de Polignac number, because 8257233381 - 2³ = 8257233373 is a prime.

It is a super-2 number, since 2×8257233381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8257233311) 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, 246235 + ... + 277751.

It is an arithmetic number, because the mean of its divisors is an integer number (718232184).

Almost surely, 2^8257233381 is an apocalyptic number.

It is an amenable number.

8257233381 is a deficient number, since it is larger than the sum of its proper divisors (3234481563).

8257233381 is a wasteful number, since it uses less digits than its factorization.

8257233381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35340.

The product of its digits is 241920, while the sum is 42.

The square root of 8257233381 is about 90869.3203507102. The cubic root of 8257233381 is about 2021.2103798002.

The spelling of 8257233381 in words is "eight billion, two hundred fifty-seven million, two hundred thirty-three thousand, three hundred eighty-one".