12578018455 has 8 divisors (see below), whose sum is σ = 15094611504. Its totient is φ = 10061755200.

The previous prime is 12578018447. The next prime is 12578018483. The reversal of 12578018455 is 55481087521.

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

It is not a de Polignac number, because 12578018455 - 2³ = 12578018447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11115 + ... + 158995.

It is an arithmetic number, because the mean of its divisors is an integer number (1886826438).

Almost surely, 2^12578018455 is an apocalyptic number.

12578018455 is a deficient number, since it is larger than the sum of its proper divisors (2516593049).

12578018455 is a wasteful number, since it uses less digits than its factorization.

12578018455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164897.

The product of its (nonzero) digits is 448000, while the sum is 46.

The spelling of 12578018455 in words is "twelve billion, five hundred seventy-eight million, eighteen thousand, four hundred fifty-five".