80381771745 has 16 divisors (see below), whose sum is σ = 140302729152. Its totient is φ = 38972980160.

The previous prime is 80381771737. The next prime is 80381771777. The reversal of 80381771745 is 54717718308.

It is not a de Polignac number, because 80381771745 - 2³ = 80381771737 is a prime.

It is a super-2 number, since 2×80381771745² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243580962 + ... + 243581291.

It is an arithmetic number, because the mean of its divisors is an integer number (8768920572).

Almost surely, 2^80381771745 is an apocalyptic number.

It is an amenable number.

80381771745 is a deficient number, since it is larger than the sum of its proper divisors (59920957407).

80381771745 is a wasteful number, since it uses less digits than its factorization.

80381771745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487162272.

The product of its (nonzero) digits is 1317120, while the sum is 51.

The spelling of 80381771745 in words is "eighty billion, three hundred eighty-one million, seven hundred seventy-one thousand, seven hundred forty-five".