77823231801151 has 4 divisors (see below), whose sum is σ = 77918022583704. Its totient is φ = 77728441018600.

The previous prime is 77823231801109. The next prime is 77823231801173. The reversal of 77823231801151 is 15110813232877.

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 77823231801151 - 2¹³ = 77823231792959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77823231801095 and 77823231801104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77823231801191) 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, 47395390045 + ... + 47395391686.

It is an arithmetic number, because the mean of its divisors is an integer number (19479505645926).

Almost surely, 2^{77823231801151} is an apocalyptic number.

77823231801151 is a deficient number, since it is larger than the sum of its proper divisors (94790782553).

77823231801151 is an equidigital number, since it uses as much as digits as its factorization.

77823231801151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94790782552.

The product of its (nonzero) digits is 564480, while the sum is 49.

The spelling of 77823231801151 in words is "seventy-seven trillion, eight hundred twenty-three billion, two hundred thirty-one million, eight hundred one thousand, one hundred fifty-one".