77195761451 has 2 divisors, whose sum is σ = 77195761452. Its totient is φ = 77195761450.

The previous prime is 77195761427. The next prime is 77195761463. The reversal of 77195761451 is 15416759177.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77195761451 - 2⁶ = 77195761387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77195761393 and 77195761402.

It is not a weakly prime, because it can be changed into another prime (77195761411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38597880725 + 38597880726.

It is an arithmetic number, because the mean of its divisors is an integer number (38597880726).

Almost surely, 2^77195761451 is an apocalyptic number.

77195761451 is a deficient number, since it is larger than the sum of its proper divisors (1).

77195761451 is an equidigital number, since it uses as much as digits as its factorization.

77195761451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1852200, while the sum is 53.

The spelling of 77195761451 in words is "seventy-seven billion, one hundred ninety-five million, seven hundred sixty-one thousand, four hundred fifty-one".