46866651989 has 2 divisors, whose sum is σ = 46866651990. Its totient is φ = 46866651988.

The previous prime is 46866651971. The next prime is 46866652003. The reversal of 46866651989 is 98915666864.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26068685764 + 20797966225 = 161458^2 + 144215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46866651989 is a prime.

It is a super-2 number, since 2×46866651989² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46866657989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23433325994 + 23433325995.

It is an arithmetic number, because the mean of its divisors is an integer number (23433325995).

Almost surely, 2^46866651989 is an apocalyptic number.

It is an amenable number.

46866651989 is a deficient number, since it is larger than the sum of its proper divisors (1).

46866651989 is an equidigital number, since it uses as much as digits as its factorization.

46866651989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134369280, while the sum is 68.

The spelling of 46866651989 in words is "forty-six billion, eight hundred sixty-six million, six hundred fifty-one thousand, nine hundred eighty-nine".