12377478657 has 8 divisors (see below), whose sum is σ = 16503911680. Its totient is φ = 8251349040.

The previous prime is 12377478647. The next prime is 12377478671. The reversal of 12377478657 is 75687477321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12377478657 - 2¹² = 12377474561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12377478597 and 12377478606.

It is not an unprimeable number, because it can be changed into a prime (12377478637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48432 + ... + 164622.

It is an arithmetic number, because the mean of its divisors is an integer number (2062988960).

Almost surely, 2^12377478657 is an apocalyptic number.

It is an amenable number.

12377478657 is a deficient number, since it is larger than the sum of its proper divisors (4126433023).

12377478657 is a wasteful number, since it uses less digits than its factorization.

12377478657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151703.

The product of its digits is 13829760, while the sum is 57.

The spelling of 12377478657 in words is "twelve billion, three hundred seventy-seven million, four hundred seventy-eight thousand, six hundred fifty-seven".