46391661454081 has 4 divisors (see below), whose sum is σ = 46869926005252. Its totient is φ = 45913396902912.

The previous prime is 46391661454063. The next prime is 46391661454129. The reversal of 46391661454081 is 18045416619364.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15176634318400 + 31215027135681 = 3895720^2 + 5587041^2 .

It is a cyclic number.

It is not a de Polignac number, because 46391661454081 - 2⁵ = 46391661454049 is a prime.

It is a super-2 number, since 2×46391661454081² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46391661454001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239132275440 + ... + 239132275633.

It is an arithmetic number, because the mean of its divisors is an integer number (11717481501313).

Almost surely, 2^{46391661454081} is an apocalyptic number.

It is an amenable number.

46391661454081 is a deficient number, since it is larger than the sum of its proper divisors (478264551171).

46391661454081 is an equidigital number, since it uses as much as digits as its factorization.

46391661454081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478264551170.

The product of its (nonzero) digits is 14929920, while the sum is 58.

The spelling of 46391661454081 in words is "forty-six trillion, three hundred ninety-one billion, six hundred sixty-one million, four hundred fifty-four thousand, eighty-one".