1980173690290 has 32 divisors (see below), whose sum is σ = 3753139680000. Its totient is φ = 750135282048.

The previous prime is 1980173690263. The next prime is 1980173690317. The reversal of 1980173690290 is 920963710891.

It is an interprime number because it is at equal distance from previous prime (1980173690263) and next prime (1980173690317).

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, 1129770 + ... + 2288389.

It is an arithmetic number, because the mean of its divisors is an integer number (117285615000).

Almost surely, 2^{1980173690290} is an apocalyptic number.

1980173690290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1980173690290 is a deficient number, since it is larger than the sum of its proper divisors (1772965989710).

1980173690290 is a wasteful number, since it uses less digits than its factorization.

1980173690290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3421234.

The product of its (nonzero) digits is 1469664, while the sum is 55.

The spelling of 1980173690290 in words is "one trillion, nine hundred eighty billion, one hundred seventy-three million, six hundred ninety thousand, two hundred ninety".