46178128281 has 16 divisors (see below), whose sum is σ = 62167878144. Its totient is φ = 30488285184.

The previous prime is 46178128223. The next prime is 46178128289. The reversal of 46178128281 is 18282187164.

It is not a de Polignac number, because 46178128281 - 2⁷ = 46178128153 is a prime.

It is a super-2 number, since 2×46178128281² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 46178128281.

It is not an unprimeable number, because it can be changed into a prime (46178128289) 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, 39721 + ... + 306486.

It is an arithmetic number, because the mean of its divisors is an integer number (3885492384).

Almost surely, 2^46178128281 is an apocalyptic number.

It is an amenable number.

46178128281 is a deficient number, since it is larger than the sum of its proper divisors (15989749863).

46178128281 is a wasteful number, since it uses less digits than its factorization.

46178128281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346640.

The product of its digits is 344064, while the sum is 48.

The spelling of 46178128281 in words is "forty-six billion, one hundred seventy-eight million, one hundred twenty-eight thousand, two hundred eighty-one".