80420901946 has 32 divisors (see below), whose sum is σ = 150440561280. Its totient is φ = 31323854400.

The previous prime is 80420901937. The next prime is 80420901961. The reversal of 80420901946 is 64910902408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478560 + ... + 624388.

It is an arithmetic number, because the mean of its divisors is an integer number (4701267540).

Almost surely, 2^80420901946 is an apocalyptic number.

80420901946 is a deficient number, since it is larger than the sum of its proper divisors (70019659334).

80420901946 is a wasteful number, since it uses less digits than its factorization.

80420901946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149430.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 80420901946 in words is "eighty billion, four hundred twenty million, nine hundred one thousand, nine hundred forty-six".