77610480357 has 4 divisors (see below), whose sum is σ = 103480640480. Its totient is φ = 51740320236.

The previous prime is 77610480323. The next prime is 77610480359. The reversal of 77610480357 is 75308401677.

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.

It is not a de Polignac number, because 77610480357 - 2³⁰ = 76536738533 is a prime.

It is a super-2 number, since 2×77610480357² (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 (77610480359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12935080057 + ... + 12935080062.

It is an arithmetic number, because the mean of its divisors is an integer number (25870160120).

Almost surely, 2^77610480357 is an apocalyptic number.

It is an amenable number.

77610480357 is a deficient number, since it is larger than the sum of its proper divisors (25870160123).

77610480357 is a wasteful number, since it uses less digits than its factorization.

77610480357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25870160122.

The product of its (nonzero) digits is 987840, while the sum is 48.

The spelling of 77610480357 in words is "seventy-seven billion, six hundred ten million, four hundred eighty thousand, three hundred fifty-seven".