46090478921 has 2 divisors, whose sum is σ = 46090478922. Its totient is φ = 46090478920.

The previous prime is 46090478821. The next prime is 46090478947. The reversal of 46090478921 is 12987409064.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32971296400 + 13119182521 = 181580^2 + 114539^2 .

It is a cyclic number.

It is not a de Polignac number, because 46090478921 - 2³⁴ = 28910609737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 46090478921.

It is not a weakly prime, because it can be changed into another prime (46090478971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23045239460 + 23045239461.

It is an arithmetic number, because the mean of its divisors is an integer number (23045239461).

Almost surely, 2^46090478921 is an apocalyptic number.

It is an amenable number.

46090478921 is a deficient number, since it is larger than the sum of its proper divisors (1).

46090478921 is an equidigital number, since it uses as much as digits as its factorization.

46090478921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 46090478921 in words is "forty-six billion, ninety million, four hundred seventy-eight thousand, nine hundred twenty-one".