1958114611977 has 4 divisors (see below), whose sum is σ = 2610819482640. Its totient is φ = 1305409741316.

The previous prime is 1958114611949. The next prime is 1958114611997. The reversal of 1958114611977 is 7791164118591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1958114611977 - 2³¹ = 1955967128329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1958114611977.

It is not an unprimeable number, because it can be changed into a prime (1958114611997) 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, 326352435327 + ... + 326352435332.

It is an arithmetic number, because the mean of its divisors is an integer number (652704870660).

Almost surely, 2^{1958114611977} is an apocalyptic number.

It is an amenable number.

1958114611977 is a deficient number, since it is larger than the sum of its proper divisors (652704870663).

1958114611977 is an equidigital number, since it uses as much as digits as its factorization.

1958114611977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652704870662.

The product of its digits is 3810240, while the sum is 60.

The spelling of 1958114611977 in words is "one trillion, nine hundred fifty-eight billion, one hundred fourteen million, six hundred eleven thousand, nine hundred seventy-seven".