77234456131451 has 2 divisors, whose sum is σ = 77234456131452. Its totient is φ = 77234456131450.

The previous prime is 77234456131447. The next prime is 77234456131541. The reversal of 77234456131451 is 15413165443277.

Together with next prime (77234456131541) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77234456131451 - 2² = 77234456131447 is a prime.

It is a super-2 number, since 2×77234456131451² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77234456131393 and 77234456131402.

It is not a weakly prime, because it can be changed into another prime (77234456131051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38617228065725 + 38617228065726.

It is an arithmetic number, because the mean of its divisors is an integer number (38617228065726).

Almost surely, 2^{77234456131451} is an apocalyptic number.

77234456131451 is a deficient number, since it is larger than the sum of its proper divisors (1).

77234456131451 is an equidigital number, since it uses as much as digits as its factorization.

77234456131451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8467200, while the sum is 53.

The spelling of 77234456131451 in words is "seventy-seven trillion, two hundred thirty-four billion, four hundred fifty-six million, one hundred thirty-one thousand, four hundred fifty-one".