7042921055 has 8 divisors (see below), whose sum is σ = 8526298032. Its totient is φ = 5584475008.

The previous prime is 7042921051. The next prime is 7042921069. The reversal of 7042921055 is 5501292407.

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 7042921055 - 2² = 7042921051 is a prime.

It is a super-3 number, since 3×7042921055³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7042921051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6232109 + ... + 6233238.

It is an arithmetic number, because the mean of its divisors is an integer number (1065787254).

Almost surely, 2^7042921055 is an apocalyptic number.

7042921055 is a deficient number, since it is larger than the sum of its proper divisors (1483376977).

7042921055 is a wasteful number, since it uses less digits than its factorization.

7042921055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12465465.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 7042921055 is about 83922.1130274971. The cubic root of 7042921055 is about 1916.8329819468.

The spelling of 7042921055 in words is "seven billion, forty-two million, nine hundred twenty-one thousand, fifty-five".