46122985721 has 4 divisors (see below), whose sum is σ = 46123416192. Its totient is φ = 46122555252.

The previous prime is 46122985717. The next prime is 46122985723. The reversal of 46122985721 is 12758922164.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 46122985721 - 2² = 46122985717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46122985723) 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, 86240 + ... + 315726.

It is an arithmetic number, because the mean of its divisors is an integer number (11530854048).

Almost surely, 2^46122985721 is an apocalyptic number.

It is an amenable number.

46122985721 is a deficient number, since it is larger than the sum of its proper divisors (430471).

46122985721 is a wasteful number, since it uses less digits than its factorization.

46122985721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430470.

The product of its digits is 483840, while the sum is 47.

The spelling of 46122985721 in words is "forty-six billion, one hundred twenty-two million, nine hundred eighty-five thousand, seven hundred twenty-one".