2738461621 has 8 divisors (see below), whose sum is σ = 3294390080. Its totient is φ = 2223713088.

The previous prime is 2738461603. The next prime is 2738461637. The reversal of 2738461621 is 1261648372.

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 2738461621 - 2⁵ = 2738461589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2738461651) 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, 10294836 + ... + 10295101.

It is an arithmetic number, because the mean of its divisors is an integer number (411798760).

Almost surely, 2^2738461621 is an apocalyptic number.

It is an amenable number.

2738461621 is a deficient number, since it is larger than the sum of its proper divisors (555928459).

2738461621 is a wasteful number, since it uses less digits than its factorization.

2738461621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20589963.

The product of its digits is 96768, while the sum is 40.

The square root of 2738461621 is about 52330.3126399986. The cubic root of 2738461621 is about 1399.0574643995.

The spelling of 2738461621 in words is "two billion, seven hundred thirty-eight million, four hundred sixty-one thousand, six hundred twenty-one".