21277414674120 has 128 divisors (see below), whose sum is σ = 72036388368000. Its totient is φ = 4980293498880.

The previous prime is 21277414674101. The next prime is 21277414674157. The reversal of 21277414674120 is 2147641477212.

It is a self number, because there is not a number n which added to its sum of digits gives 21277414674120.

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, 277879885 + ... + 277956444.

It is an arithmetic number, because the mean of its divisors is an integer number (562784284125).

Almost surely, 2^{21277414674120} is an apocalyptic number.

21277414674120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21277414674120 is an abundant number, since it is smaller than the sum of its proper divisors (50758973693880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21277414674120 is a wasteful number, since it uses less digits than its factorization.

21277414674120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555836383 (or 555836379 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 48.

The spelling of 21277414674120 in words is "twenty-one trillion, two hundred seventy-seven billion, four hundred fourteen million, six hundred seventy-four thousand, one hundred twenty".