77120316001 has 4 divisors (see below), whose sum is σ = 77120910000. Its totient is φ = 77119722004.

The previous prime is 77120315983. The next prime is 77120316029. The reversal of 77120316001 is 10061302177.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10061302177 = 7757 ⋅1297061.

It is a cyclic number.

It is not a de Polignac number, because 77120316001 - 2¹⁷ = 77120184929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77120316101) 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, 9451 + ... + 392848.

It is an arithmetic number, because the mean of its divisors is an integer number (19280227500).

Almost surely, 2^77120316001 is an apocalyptic number.

It is an amenable number.

77120316001 is a deficient number, since it is larger than the sum of its proper divisors (593999).

77120316001 is a wasteful number, since it uses less digits than its factorization.

77120316001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593998.

The product of its (nonzero) digits is 1764, while the sum is 28.

Adding to 77120316001 its reverse (10061302177), we get a palindrome (87181618178).

The spelling of 77120316001 in words is "seventy-seven billion, one hundred twenty million, three hundred sixteen thousand, one".