13405373577 has 6 divisors (see below), whose sum is σ = 19363317402. Its totient is φ = 8936915712.

The previous prime is 13405373561. The next prime is 13405373587. The reversal of 13405373577 is 77537350431.

13405373577 is a `hidden beast` number, since 1 + 3 + 4 + 0 + 5 + 3 + 73 + 577 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12762446841 + 642926736 = 112971^2 + 25356^2 .

It is not a de Polignac number, because 13405373577 - 2⁴ = 13405373561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13405373507) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 744742968 + ... + 744742985.

It is an arithmetic number, because the mean of its divisors is an integer number (3227219567).

Almost surely, 2^13405373577 is an apocalyptic number.

It is an amenable number.

13405373577 is a deficient number, since it is larger than the sum of its proper divisors (5957943825).

13405373577 is a wasteful number, since it uses less digits than its factorization.

13405373577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489485959 (or 1489485956 counting only the distinct ones).

The product of its (nonzero) digits is 926100, while the sum is 45.

The spelling of 13405373577 in words is "thirteen billion, four hundred five million, three hundred seventy-three thousand, five hundred seventy-seven".