123460767577 has 4 divisors (see below), whose sum is σ = 141098020096. Its totient is φ = 105823515060.

The previous prime is 123460767571. The next prime is 123460767613. The reversal of 123460767577 is 775767064321.

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 an emirpimes, since its reverse is a distinct semiprime: 775767064321 = 10513 ⋅73791217.

It is a cyclic number.

It is not a de Polignac number, because 123460767577 - 2¹¹ = 123460765529 is a prime.

It is a super-2 number, since 2×123460767577² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123460767571) 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, 8818626249 + ... + 8818626262.

It is an arithmetic number, because the mean of its divisors is an integer number (35274505024).

Almost surely, 2^123460767577 is an apocalyptic number.

It is an amenable number.

123460767577 is a deficient number, since it is larger than the sum of its proper divisors (17637252519).

123460767577 is an equidigital number, since it uses as much as digits as its factorization.

123460767577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17637252518.

The product of its (nonzero) digits is 10372320, while the sum is 55.

The spelling of 123460767577 in words is "one hundred twenty-three billion, four hundred sixty million, seven hundred sixty-seven thousand, five hundred seventy-seven".