77207617141 has 4 divisors (see below), whose sum is σ = 77208210432. Its totient is φ = 77207023852.

The previous prime is 77207617121. The next prime is 77207617147. The reversal of 77207617141 is 14171670277.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14171670277 = 19 ⋅745877383.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77207617141 is a prime.

It is a super-2 number, since 2×77207617141² (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 (77207617147) 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, 7495 + ... + 393028.

It is an arithmetic number, because the mean of its divisors is an integer number (19302052608).

Almost surely, 2^77207617141 is an apocalyptic number.

It is an amenable number.

77207617141 is a deficient number, since it is larger than the sum of its proper divisors (593291).

77207617141 is a wasteful number, since it uses less digits than its factorization.

77207617141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593290.

The product of its (nonzero) digits is 115248, while the sum is 43.

The spelling of 77207617141 in words is "seventy-seven billion, two hundred seven million, six hundred seventeen thousand, one hundred forty-one".