6801281157 has 16 divisors (see below), whose sum is σ = 9936364032. Its totient is φ = 4103825520.

The previous prime is 6801281131. The next prime is 6801281161. The reversal of 6801281157 is 7511821086.

It is not a de Polignac number, because 6801281157 - 2⁶ = 6801281093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6801281257) 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, 446473 + ... + 461454.

It is an arithmetic number, because the mean of its divisors is an integer number (621022752).

Almost surely, 2^6801281157 is an apocalyptic number.

It is an amenable number.

6801281157 is a deficient number, since it is larger than the sum of its proper divisors (3135082875).

6801281157 is a wasteful number, since it uses less digits than its factorization.

6801281157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908168.

The product of its (nonzero) digits is 26880, while the sum is 39.

The square root of 6801281157 is about 82469.8803018411. The cubic root of 6801281157 is about 1894.6554472272.

The spelling of 6801281157 in words is "six billion, eight hundred one million, two hundred eighty-one thousand, one hundred fifty-seven".