7420534871 has 4 divisors (see below), whose sum is σ = 7422844752. Its totient is φ = 7418224992.

The previous prime is 7420534829. The next prime is 7420534879. The reversal of 7420534871 is 1784350247.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7420534871 - 2²² = 7416340567 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 (7420534879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1150115 + ... + 1156548.

It is an arithmetic number, because the mean of its divisors is an integer number (1855711188).

Almost surely, 2^7420534871 is an apocalyptic number.

7420534871 is a deficient number, since it is larger than the sum of its proper divisors (2309881).

7420534871 is a wasteful number, since it uses less digits than its factorization.

7420534871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309880.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 7420534871 is about 86142.5264953379. The cubic root of 7420534871 is about 1950.4960273089.

The spelling of 7420534871 in words is "seven billion, four hundred twenty million, five hundred thirty-four thousand, eight hundred seventy-one".