46872036721 has 2 divisors, whose sum is σ = 46872036722. Its totient is φ = 46872036720.

The previous prime is 46872036709. The next prime is 46872036773. The reversal of 46872036721 is 12763027864.

46872036721 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., 37660836096 + 9211200625 = 194064^2 + 95975^2 .

It is a cyclic number.

It is not a de Polignac number, because 46872036721 - 2¹³ = 46872028529 is a prime.

It is not a weakly prime, because it can be changed into another prime (46872036521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23436018360 + 23436018361.

It is an arithmetic number, because the mean of its divisors is an integer number (23436018361).

Almost surely, 2^46872036721 is an apocalyptic number.

It is an amenable number.

46872036721 is a deficient number, since it is larger than the sum of its proper divisors (1).

46872036721 is an equidigital number, since it uses as much as digits as its factorization.

46872036721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 46872036721 in words is "forty-six billion, eight hundred seventy-two million, thirty-six thousand, seven hundred twenty-one".