11978494746010 has 64 divisors (see below), whose sum is σ = 23242732676352. Its totient is φ = 4418472254976.

The previous prime is 11978494746007. The next prime is 11978494746059. The reversal of 11978494746010 is 1064749487911.

It is a self number, because there is not a number n which added to its sum of digits gives 11978494746010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1095221262 + ... + 1095232198.

It is an arithmetic number, because the mean of its divisors is an integer number (363167698068).

Almost surely, 2^{11978494746010} is an apocalyptic number.

11978494746010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11978494746010 is a deficient number, since it is larger than the sum of its proper divisors (11264237930342).

11978494746010 is a wasteful number, since it uses less digits than its factorization.

11978494746010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18487.

The product of its (nonzero) digits is 12192768, while the sum is 61.

The spelling of 11978494746010 in words is "eleven trillion, nine hundred seventy-eight billion, four hundred ninety-four million, seven hundred forty-six thousand, ten".