77423610451 has 16 divisors (see below), whose sum is σ = 87364463616. Its totient is φ = 67975740000.

The previous prime is 77423610449. The next prime is 77423610469. The reversal of 77423610451 is 15401632477.

It is a cyclic number.

It is not a de Polignac number, because 77423610451 - 2¹ = 77423610449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77423610421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63780 + ... + 398641.

It is an arithmetic number, because the mean of its divisors is an integer number (5460278976).

Almost surely, 2^77423610451 is an apocalyptic number.

77423610451 is a deficient number, since it is larger than the sum of its proper divisors (9940853165).

77423610451 is a wasteful number, since it uses less digits than its factorization.

77423610451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462954.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 77423610451 in words is "seventy-seven billion, four hundred twenty-three million, six hundred ten thousand, four hundred fifty-one".