46386776921 has 2 divisors, whose sum is σ = 46386776922. Its totient is φ = 46386776920.

The previous prime is 46386776911. The next prime is 46386776939. The reversal of 46386776921 is 12967768364.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43332667225 + 3054109696 = 208165^2 + 55264^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46386776921 is a prime.

It is not a weakly prime, because it can be changed into another prime (46386776911) 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, 23193388460 + 23193388461.

It is an arithmetic number, because the mean of its divisors is an integer number (23193388461).

Almost surely, 2^46386776921 is an apocalyptic number.

It is an amenable number.

46386776921 is a deficient number, since it is larger than the sum of its proper divisors (1).

46386776921 is an equidigital number, since it uses as much as digits as its factorization.

46386776921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18289152, while the sum is 59.

The spelling of 46386776921 in words is "forty-six billion, three hundred eighty-six million, seven hundred seventy-six thousand, nine hundred twenty-one".