1980253995 has 8 divisors (see below), whose sum is σ = 3168406416. Its totient is φ = 1056135456.

The previous prime is 1980253963. The next prime is 1980254011. The reversal of 1980253995 is 5993520891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1980253995 - 2⁵ = 1980253963 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66008452 + ... + 66008481.

It is an arithmetic number, because the mean of its divisors is an integer number (396050802).

Almost surely, 2^1980253995 is an apocalyptic number.

1980253995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1980253995 is a deficient number, since it is larger than the sum of its proper divisors (1188152421).

1980253995 is a wasteful number, since it uses less digits than its factorization.

1980253995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132016941.

The product of its (nonzero) digits is 874800, while the sum is 51.

The square root of 1980253995 is about 44500.0448876178. The cubic root of 1980253995 is about 1255.7609275163.

The spelling of 1980253995 in words is "one billion, nine hundred eighty million, two hundred fifty-three thousand, nine hundred ninety-five".