46994581993 has 2 divisors, whose sum is σ = 46994581994. Its totient is φ = 46994581992.

The previous prime is 46994581987. The next prime is 46994582003. The reversal of 46994581993 is 39918549964.

46994581993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35837518864 + 11157063129 = 189308^2 + 105627^2 .

It is a cyclic number.

It is not a de Polignac number, because 46994581993 - 2⁵ = 46994581961 is a prime.

It is not a weakly prime, because it can be changed into another prime (46994581973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23497290996 + 23497290997.

It is an arithmetic number, because the mean of its divisors is an integer number (23497290997).

Almost surely, 2^46994581993 is an apocalyptic number.

It is an amenable number.

46994581993 is a deficient number, since it is larger than the sum of its proper divisors (1).

46994581993 is an equidigital number, since it uses as much as digits as its factorization.

46994581993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75582720, while the sum is 67.

The spelling of 46994581993 in words is "forty-six billion, nine hundred ninety-four million, five hundred eighty-one thousand, nine hundred ninety-three".