1000000009977 has 4 divisors (see below), whose sum is σ = 1333333346640. Its totient is φ = 666666673316.

The previous prime is 1000000009973. The next prime is 1000000009991. The reversal of 1000000009977 is 7799000000001.

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 1000000009977 - 2² = 1000000009973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000000009973) 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, 166666668327 + ... + 166666668332.

It is an arithmetic number, because the mean of its divisors is an integer number (333333336660).

Almost surely, 2^{1000000009977} is an apocalyptic number.

It is an amenable number.

1000000009977 is a deficient number, since it is larger than the sum of its proper divisors (333333336663).

1000000009977 is an equidigital number, since it uses as much as digits as its factorization.

1000000009977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333333336662.

The product of its (nonzero) digits is 3969, while the sum is 33.

Adding to 1000000009977 its reverse (7799000000001), we get a palindrome (8799000009978).

The spelling of 1000000009977 in words is "one trillion, nine thousand, nine hundred seventy-seven".