46635018721 has 4 divisors (see below), whose sum is σ = 47772458244. Its totient is φ = 45497579200.

The previous prime is 46635018713. The next prime is 46635018737. The reversal of 46635018721 is 12781053664.

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 15348484321 + 31286534400 = 123889^2 + 176880^2 .

It is a cyclic number.

It is not a de Polignac number, because 46635018721 - 2³ = 46635018713 is a prime.

It is a super-2 number, since 2×46635018721² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46635018701) 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, 568719700 + ... + 568719781.

It is an arithmetic number, because the mean of its divisors is an integer number (11943114561).

Almost surely, 2^46635018721 is an apocalyptic number.

46635018721 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

46635018721 is a deficient number, since it is larger than the sum of its proper divisors (1137439523).

46635018721 is a wasteful number, since it uses less digits than its factorization.

46635018721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137439522.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 46635018721 in words is "forty-six billion, six hundred thirty-five million, eighteen thousand, seven hundred twenty-one".