1973050621217 has 8 divisors (see below), whose sum is σ = 2125884594624. Its totient is φ = 1820368197648.

The previous prime is 1973050621207. The next prime is 1973050621231. The reversal of 1973050621217 is 7121260503791.

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

It is not a de Polignac number, because 1973050621217 - 2⁶ = 1973050621153 is a prime.

It is a super-2 number, since 2×1973050621217² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1973050621207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37860413 + ... + 37912490.

It is an arithmetic number, because the mean of its divisors is an integer number (265735574328).

Almost surely, 2^{1973050621217} is an apocalyptic number.

It is an amenable number.

1973050621217 is a deficient number, since it is larger than the sum of its proper divisors (152833973407).

1973050621217 is a wasteful number, since it uses less digits than its factorization.

1973050621217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75774919.

The product of its (nonzero) digits is 158760, while the sum is 44.

The spelling of 1973050621217 in words is "one trillion, nine hundred seventy-three billion, fifty million, six hundred twenty-one thousand, two hundred seventeen".