2631354721 has 8 divisors (see below), whose sum is σ = 2770954560. Its totient is φ = 2493854352.

The previous prime is 2631354683. The next prime is 2631354827. The reversal of 2631354721 is 1274531362.

2631354721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2631354721 - 2¹¹ = 2631352673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2631354221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522295 + ... + 527308.

It is an arithmetic number, because the mean of its divisors is an integer number (346369320).

Almost surely, 2^2631354721 is an apocalyptic number.

It is an amenable number.

2631354721 is a deficient number, since it is larger than the sum of its proper divisors (139599839).

2631354721 is a wasteful number, since it uses less digits than its factorization.

2631354721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049735.

The product of its digits is 30240, while the sum is 34.

The square root of 2631354721 is about 51296.7320694018. The cubic root of 2631354721 is about 1380.5743462742.

The spelling of 2631354721 in words is "two billion, six hundred thirty-one million, three hundred fifty-four thousand, seven hundred twenty-one".