80356211870 has 32 divisors (see below), whose sum is σ = 162054992736. Its totient is φ = 28430697600.

The previous prime is 80356211869. The next prime is 80356211879. The reversal of 80356211870 is 7811265308.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80356211879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9867701 + ... + 9875840.

It is an arithmetic number, because the mean of its divisors is an integer number (5064218523).

Almost surely, 2^80356211870 is an apocalyptic number.

80356211870 is an abundant number, since it is smaller than the sum of its proper divisors (81698780866).

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

80356211870 is a wasteful number, since it uses less digits than its factorization.

80356211870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19743596.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 80356211870 in words is "eighty billion, three hundred fifty-six million, two hundred eleven thousand, eight hundred seventy".