7081051621 has 8 divisors (see below), whose sum is σ = 8096747904. Its totient is φ = 6066384720.

The previous prime is 7081051577. The next prime is 7081051639. The reversal of 7081051621 is 1261501807.

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 7081051621 - 2³¹ = 4933567973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7081051661) 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, 242545 + ... + 270166.

It is an arithmetic number, because the mean of its divisors is an integer number (1012093488).

Almost surely, 2^7081051621 is an apocalyptic number.

It is an amenable number.

7081051621 is a deficient number, since it is larger than the sum of its proper divisors (1015696283).

7081051621 is a wasteful number, since it uses less digits than its factorization.

7081051621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514691.

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 7081051621 is about 84148.9846700482. The cubic root of 7081051621 is about 1920.2860197633.

The spelling of 7081051621 in words is "seven billion, eighty-one million, fifty-one thousand, six hundred twenty-one".