802020755474 has 4 divisors (see below), whose sum is σ = 1203031133214. Its totient is φ = 401010377736.

The previous prime is 802020755461. The next prime is 802020755647. The reversal of 802020755474 is 474557020208.

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

It can be written as a sum of positive squares in only one way, i.e., 801821748025 + 199007449 = 895445^2 + 14107^2 .

It is a super-2 number, since 2×802020755474² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200505188867 + ... + 200505188870.

Almost surely, 2^802020755474 is an apocalyptic number.

802020755474 is a deficient number, since it is larger than the sum of its proper divisors (401010377740).

802020755474 is a wasteful number, since it uses less digits than its factorization.

802020755474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401010377739.

The product of its (nonzero) digits is 627200, while the sum is 44.

The spelling of 802020755474 in words is "eight hundred two billion, twenty million, seven hundred fifty-five thousand, four hundred seventy-four".