1958941599971 has 4 divisors (see below), whose sum is σ = 1960860250944. Its totient is φ = 1957022949000.

The previous prime is 1958941599961. The next prime is 1958941599977. The reversal of 1958941599971 is 1799951498591.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1958941599971 - 2¹⁴ = 1958941583587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1958941599892 and 1958941599901.

It is not an unprimeable number, because it can be changed into a prime (1958941599977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959323955 + ... + 959325996.

It is an arithmetic number, because the mean of its divisors is an integer number (490215062736).

Almost surely, 2^{1958941599971} is an apocalyptic number.

1958941599971 is a deficient number, since it is larger than the sum of its proper divisors (1918650973).

1958941599971 is a wasteful number, since it uses less digits than its factorization.

1958941599971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918650972.

The product of its digits is 330674400, while the sum is 77.

The spelling of 1958941599971 in words is "one trillion, nine hundred fifty-eight billion, nine hundred forty-one million, five hundred ninety-nine thousand, nine hundred seventy-one".