7421043755 has 16 divisors (see below), whose sum is σ = 9101872800. Its totient is φ = 5806844160.

The previous prime is 7421043739. The next prime is 7421043757. The reversal of 7421043755 is 5573401247.

It is not a de Polignac number, because 7421043755 - 2⁴ = 7421043739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7421043757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13370 + ... + 122559.

It is an arithmetic number, because the mean of its divisors is an integer number (568867050).

Almost surely, 2^7421043755 is an apocalyptic number.

7421043755 is a deficient number, since it is larger than the sum of its proper divisors (1680829045).

7421043755 is a wasteful number, since it uses less digits than its factorization.

7421043755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136174.

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 7421043755 is about 86145.4801774301. The cubic root of 7421043755 is about 1950.5406132023.

The spelling of 7421043755 in words is "seven billion, four hundred twenty-one million, forty-three thousand, seven hundred fifty-five".