80771405962 has 16 divisors (see below), whose sum is σ = 130654921320. Its totient is φ = 37228243392.

The previous prime is 80771405947. The next prime is 80771405969. The reversal of 80771405962 is 26950417708.

It can be written as a sum of positive squares in 4 ways, for example, as 58748549161 + 22022856801 = 242381^2 + 148401^2 .

It is not an unprimeable number, because it can be changed into a prime (80771405969) 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, 2100037 + ... + 2138152.

Almost surely, 2^80771405962 is an apocalyptic number.

80771405962 is a deficient number, since it is larger than the sum of its proper divisors (49883515358).

80771405962 is a wasteful number, since it uses less digits than its factorization.

80771405962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238937.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 80771405962 in words is "eighty billion, seven hundred seventy-one million, four hundred five thousand, nine hundred sixty-two".