80121342735 has 48 divisors (see below), whose sum is σ = 161318514240. Its totient is φ = 36026449920.

The previous prime is 80121342727. The next prime is 80121342751. The reversal of 80121342735 is 53724312108.

80121342735 is a `hidden beast` number, since 80 + 121 + 3 + 427 + 35 = 666.

It is not a de Polignac number, because 80121342735 - 2³ = 80121342727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80121342735.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2065650 + ... + 2104079.

It is an arithmetic number, because the mean of its divisors is an integer number (3360802380).

Almost surely, 2^80121342735 is an apocalyptic number.

80121342735 is an abundant number, since it is smaller than the sum of its proper divisors (81197171505).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80121342735 is a wasteful number, since it uses less digits than its factorization.

80121342735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4169808 (or 4169805 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 80121342735 in words is "eighty billion, one hundred twenty-one million, three hundred forty-two thousand, seven hundred thirty-five".