77410040677 has 4 divisors (see below), whose sum is σ = 77458152940. Its totient is φ = 77361928416.

The previous prime is 77410040639. The next prime is 77410040681. The reversal of 77410040677 is 77604001477.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64046449476 + 13363591201 = 253074^2 + 115601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77410040677 is a prime.

It is a super-2 number, since 2×77410040677² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77410070677) 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, 24053718 + ... + 24056935.

It is an arithmetic number, because the mean of its divisors is an integer number (19364538235).

Almost surely, 2^77410040677 is an apocalyptic number.

It is an amenable number.

77410040677 is a deficient number, since it is larger than the sum of its proper divisors (48112263).

77410040677 is a wasteful number, since it uses less digits than its factorization.

77410040677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48112262.

The product of its (nonzero) digits is 230496, while the sum is 43.

The spelling of 77410040677 in words is "seventy-seven billion, four hundred ten million, forty thousand, six hundred seventy-seven".