46287178321 has 2 divisors, whose sum is σ = 46287178322. Its totient is φ = 46287178320.

The previous prime is 46287178279. The next prime is 46287178331. The reversal of 46287178321 is 12387178264.

46287178321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39247968321 + 7039210000 = 198111^2 + 83900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46287178321 is a prime.

It is not a weakly prime, because it can be changed into another prime (46287178331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23143589160 + 23143589161.

It is an arithmetic number, because the mean of its divisors is an integer number (23143589161).

Almost surely, 2^46287178321 is an apocalyptic number.

It is an amenable number.

46287178321 is a deficient number, since it is larger than the sum of its proper divisors (1).

46287178321 is an equidigital number, since it uses as much as digits as its factorization.

46287178321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 49.

The spelling of 46287178321 in words is "forty-six billion, two hundred eighty-seven million, one hundred seventy-eight thousand, three hundred twenty-one".