11868578406321 has 32 divisors (see below), whose sum is σ = 19477116223488. Its totient is φ = 6260196456000.

The previous prime is 11868578406299. The next prime is 11868578406343. The reversal of 11868578406321 is 12360487586811.

It is an interprime number because it is at equal distance from previous prime (11868578406299) and next prime (11868578406343).

It is not a de Polignac number, because 11868578406321 - 2⁶ = 11868578406257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11868578404321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11162560 + ... + 12179486.

It is an arithmetic number, because the mean of its divisors is an integer number (608659881984).

Almost surely, 2^{11868578406321} is an apocalyptic number.

It is an amenable number.

11868578406321 is a deficient number, since it is larger than the sum of its proper divisors (7608537817167).

11868578406321 is a wasteful number, since it uses less digits than its factorization.

11868578406321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059701.

The product of its (nonzero) digits is 15482880, while the sum is 60.

The spelling of 11868578406321 in words is "eleven trillion, eight hundred sixty-eight billion, five hundred seventy-eight million, four hundred six thousand, three hundred twenty-one".