80621001942 has 192 divisors, whose sum is σ = 189490710528. Its totient is φ = 22686048000.

The previous prime is 80621001907. The next prime is 80621001971. The reversal of 80621001942 is 24910012608.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 174127203 + ... + 174127665.

It is an arithmetic number, because the mean of its divisors is an integer number (986930784).

Almost surely, 2^80621001942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80621001942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94745355264).

80621001942 is an abundant number, since it is smaller than the sum of its proper divisors (108869708586).

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

80621001942 is a wasteful number, since it uses less digits than its factorization.

80621001942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 80621001942 in words is "eighty billion, six hundred twenty-one million, one thousand, nine hundred forty-two".